bdb.result 42.3 KB
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8;
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create table t1 (id int unsigned not null auto_increment, code tinyint unsigned not null, name char(20) not null, primary key (id), key (code), unique (name)) engine=bdb;
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insert into t1 (code, name) values (1, 'Tim'), (1, 'Monty'), (2, 'David'), (2, 'Erik'), (3, 'Sasha'), (3, 'Jeremy'), (4, 'Matt');
select id, code, name from t1 order by id;
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id	code	name
1	1	Tim
2	1	Monty
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
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update ignore t1 set id = 8, name = 'Sinisa' where id < 3;
select id, code, name from t1 order by id;
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id	code	name
2	1	Monty
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
8	1	Sinisa
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update ignore t1 set id = id + 10, name = 'Ralph' where id < 4;
select id, code, name from t1 order by id;
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id	code	name
3	2	David
4	2	Erik
5	3	Sasha
6	3	Jeremy
7	4	Matt
8	1	Sinisa
12	1	Ralph
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drop table t1;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
parent_id int(11) DEFAULT '0' NOT NULL,
level tinyint(4) DEFAULT '0' NOT NULL,
PRIMARY KEY (id),
KEY parent_id (parent_id),
KEY level (level)
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) engine=bdb;
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INSERT INTO t1 VALUES (1,0,0),(3,1,1),(4,1,1),(8,2,2),(9,2,2),(17,3,2),(22,4,2),(24,4,2),(28,5,2),(29,5,2),(30,5,2),(31,6,2),(32,6,2),(33,6,2),(203,7,2),(202,7,2),(20,3,2),(157,0,0),(193,5,2),(40,7,2),(2,1,1),(15,2,2),(6,1,1),(34,6,2),(35,6,2),(16,3,2),(7,1,1),(36,7,2),(18,3,2),(26,5,2),(27,5,2),(183,4,2),(38,7,2),(25,5,2),(37,7,2),(21,4,2),(19,3,2),(5,1,1),(179,5,2);
update t1 set parent_id=parent_id+100;
select * from t1 where parent_id=102;
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id	parent_id	level
8	102	2
9	102	2
15	102	2
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update t1 set id=id+1000;
update t1 set id=1024 where id=1009;
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ERROR 23000: Duplicate entry '1024' for key 1
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select * from t1;
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id	parent_id	level
1001	100	0
1002	101	1
1003	101	1
1004	101	1
1005	101	1
1006	101	1
1007	101	1
1008	102	2
1009	102	2
1015	102	2
1016	103	2
1017	103	2
1018	103	2
1019	103	2
1020	103	2
1021	104	2
1022	104	2
1024	104	2
1025	105	2
1026	105	2
1027	105	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1034	106	2
1035	106	2
1036	107	2
1037	107	2
1038	107	2
1040	107	2
1157	100	0
1179	105	2
1183	104	2
1193	105	2
1202	107	2
1203	107	2
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update ignore t1 set id=id+1;
select * from t1;
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id	parent_id	level
1001	100	0
1002	101	1
1003	101	1
1004	101	1
1005	101	1
1006	101	1
1007	101	1
1008	102	2
1010	102	2
1015	102	2
1016	103	2
1017	103	2
1018	103	2
1019	103	2
1020	103	2
1021	104	2
1023	104	2
1024	104	2
1025	105	2
1026	105	2
1027	105	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1034	106	2
1035	106	2
1036	107	2
1037	107	2
1039	107	2
1041	107	2
1158	100	0
1180	105	2
1184	104	2
1194	105	2
1202	107	2
1204	107	2
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update ignore t1 set id=1023 where id=1010;
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select * from t1 where parent_id=102 order by parent_id,id;
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id	parent_id	level
1008	102	2
1010	102	2
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1015	102	2
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explain select level from t1 where level=1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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1	SIMPLE	t1	ref	level	level	1	const	6	Using index
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explain select level,id from t1 where level=1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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1	SIMPLE	t1	ref	level	level	1	const	6	Using index
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explain select level,id,parent_id from t1 where level=1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
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1	SIMPLE	t1	ref	level	level	1	const	6	
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select level,id from t1 where level=1;
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level	id
1	1002
1	1003
1	1004
1	1005
1	1006
1	1007
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select level,id,parent_id from t1 where level=1;
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level	id	parent_id
1	1002	101
1	1003	101
1	1004	101
1	1005	101
1	1006	101
1	1007	101
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optimize table t1;
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Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
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show keys from t1;
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Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	id	A	39	NULL	NULL		BTREE	
t1	1	parent_id	1	parent_id	A	9	NULL	NULL		BTREE	
t1	1	level	1	level	A	3	NULL	NULL		BTREE	
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drop table t1;
CREATE TABLE t1 (
gesuchnr int(11) DEFAULT '0' NOT NULL,
benutzer_id int(11) DEFAULT '0' NOT NULL,
PRIMARY KEY (gesuchnr,benutzer_id)
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) engine=BDB;
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replace into t1 (gesuchnr,benutzer_id) values (2,1);
replace into t1 (gesuchnr,benutzer_id) values (1,1);
replace into t1 (gesuchnr,benutzer_id) values (1,1);
select * from t1;
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gesuchnr	benutzer_id
1	1
2	1
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drop table t1;
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create table t1 (id int not null primary key, x int not null, key (x)) engine=bdb;
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insert into t1 (id, x) values (1, 1);
replace into t1 (id, x) values (1, 2);
select * from t1;
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id	x
1	2
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drop table t1;
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create table t1 (a int) engine=bdb;
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insert into t1 values (1), (2);
optimize table t1;
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Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
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delete from t1 where a = 1;
select * from t1;
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a
2
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check table t1;
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Table	Op	Msg_type	Msg_text
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test.t1	check	note	The storage engine for the table doesn't support check
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drop table t1;
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create table t1 (a int,b varchar(20)) engine=bdb;
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insert into t1 values (1,""), (2,"testing");
delete from t1 where a = 1;
select * from t1;
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a	b
2	testing
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create index skr on t1 (a);
insert into t1 values (3,""), (4,"testing");
analyze table t1;
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Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
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show keys from t1;
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Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	1	skr	1	a	A	3	NULL	NULL	YES	BTREE	
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drop table t1;
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create table t1 (a int,b varchar(20),key(a)) engine=bdb;
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insert into t1 values (1,""), (2,"testing");
select * from t1 where a = 1;
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a	b
1	
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drop table t1;
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create table t1 (a char(10) not null, b int not null auto_increment, primary key(a,b)) engine=BDB;
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insert into t1 values ("a",1),("b",2),("a",2),("c",1);
insert into t1 values ("a",NULL),("b",NULL),("c",NULL),("e",NULL);
insert into t1 (a) values ("a"),("b"),("c"),("d");
insert into t1 (a) values ('k'),('d');
insert into t1 (a) values ("a");
insert into t1 values ("d",last_insert_id());
select * from t1;
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a	b
a	1
a	2
a	3
a	4
a	5
b	2
b	3
b	4
c	1
c	2
c	3
d	1
d	2
d	5
e	1
k	1
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flush tables;
select count(*) from t1;
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count(*)
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drop table t1;
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create table t1 (n int not null primary key) engine=bdb;
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set autocommit=0;
insert into t1 values (4);
rollback;
select n, "after rollback" from t1;
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n	after rollback
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insert into t1 values (4);
commit;
select n, "after commit" from t1;
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n	after commit
4	after commit
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commit;
insert into t1 values (5);
insert into t1 values (4);
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ERROR 23000: Duplicate entry '4' for key 1
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commit;
select n, "after commit" from t1;
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n	after commit
4	after commit
5	after commit
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set autocommit=1;
insert into t1 values (6);
insert into t1 values (4);
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ERROR 23000: Duplicate entry '4' for key 1
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select n from t1;
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n
4
5
6
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rollback;
drop table t1;
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create table t1 ( id int NOT NULL PRIMARY KEY, nom varchar(64)) engine=BDB;
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begin;
insert into t1 values(1,'hamdouni');
select id as afterbegin_id,nom as afterbegin_nom from t1;
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afterbegin_id	afterbegin_nom
1	hamdouni
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rollback;
select id as afterrollback_id,nom as afterrollback_nom from t1;
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afterrollback_id	afterrollback_nom
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set autocommit=0;
insert into t1 values(2,'mysql');
select id as afterautocommit0_id,nom as afterautocommit0_nom from t1;
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afterautocommit0_id	afterautocommit0_nom
2	mysql
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rollback;
select id as afterrollback_id,nom as afterrollback_nom from t1;
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afterrollback_id	afterrollback_nom
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set autocommit=1;
drop table t1;
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CREATE TABLE t1 (id char(8) not null primary key, val int not null) engine=bdb;
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insert into t1 values ('pippo', 12);
insert into t1 values ('pippo', 12);
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ERROR 23000: Duplicate entry 'pippo' for key 1
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delete from t1;
delete from t1 where id = 'pippo';
select * from t1;
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id	val
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insert into t1 values ('pippo', 12);
set autocommit=0;
delete from t1;
rollback;
select * from t1;
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id	val
pippo	12
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delete from t1;
commit;
select * from t1;
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id	val
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drop table t1;
set autocommit=1;
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CREATE TABLE t1 (ID INTEGER NOT NULL PRIMARY KEY, NAME VARCHAR(64)) ENGINE=BDB;
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INSERT INTO t1 VALUES (1, 'Jochen');
select * from t1;
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ID	NAME
1	Jochen
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drop table t1;
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CREATE TABLE t1 ( _userid VARCHAR(60) NOT NULL PRIMARY KEY) ENGINE=BDB;
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set autocommit=0;
INSERT INTO t1  SET _userid='marc@anyware.co.uk';
COMMIT;
SELECT * FROM t1;
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_userid
marc@anyware.co.uk
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SELECT _userid FROM t1 WHERE _userid='marc@anyware.co.uk';
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_userid
marc@anyware.co.uk
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drop table t1;
set autocommit=1;
CREATE TABLE t1 (
user_id int(10) DEFAULT '0' NOT NULL,
name varchar(100),
phone varchar(100),
ref_email varchar(100) DEFAULT '' NOT NULL,
detail varchar(200),
PRIMARY KEY (user_id,ref_email)
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)engine=bdb;
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INSERT INTO t1 VALUES (10292,'sanjeev','29153373','sansh777@hotmail.com','xxx'),(10292,'shirish','2333604','shirish@yahoo.com','ddsds'),(10292,'sonali','323232','sonali@bolly.com','filmstar');
select * from t1 where user_id=10292;
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user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
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INSERT INTO t1 VALUES (10291,'sanjeev','29153373','sansh777@hotmail.com','xxx'),(10293,'shirish','2333604','shirish@yahoo.com','ddsds');
select * from t1 where user_id=10292;
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user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
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select * from t1 where user_id>=10292;
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user_id	name	phone	ref_email	detail
10292	sanjeev	29153373	sansh777@hotmail.com	xxx
10292	shirish	2333604	shirish@yahoo.com	ddsds
10292	sonali	323232	sonali@bolly.com	filmstar
10293	shirish	2333604	shirish@yahoo.com	ddsds
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select * from t1 where user_id>10292;
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user_id	name	phone	ref_email	detail
10293	shirish	2333604	shirish@yahoo.com	ddsds
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select * from t1 where user_id<10292;
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user_id	name	phone	ref_email	detail
10291	sanjeev	29153373	sansh777@hotmail.com	xxx
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drop table t1;
CREATE TABLE t1 (a int not null, b int not null,c int not null,
key(a),primary key(a,b), unique(c),key(a),unique(b));
show index from t1;
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Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	a	A	NULL	NULL	NULL		BTREE	
t1	0	PRIMARY	2	b	A	0	NULL	NULL		BTREE	
t1	0	c	1	c	A	0	NULL	NULL		BTREE	
t1	0	b	1	b	A	0	NULL	NULL		BTREE	
t1	1	a	1	a	A	NULL	NULL	NULL		BTREE	
t1	1	a_2	1	a	A	NULL	NULL	NULL		BTREE	
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drop table t1;
create table t1 (col1 int not null, col2 char(4) not null, primary key(col1));
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alter table t1 engine=BDB;
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insert into t1 values ('1','1'),('5','2'),('2','3'),('3','4'),('4','4');
select * from t1;
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col1	col2
1	1
2	3
3	4
4	4
5	2
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update t1 set col2='7' where col1='4';
select * from t1;
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col1	col2
1	1
2	3
3	4
4	7
5	2
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alter table t1 add co3 int not null;
select * from t1;
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col1	col2	co3
1	1	0
2	3	0
3	4	0
4	7	0
5	2	0
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update t1 set col2='9' where col1='2';
select * from t1;
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col1	col2	co3
1	1	0
2	9	0
3	4	0
4	7	0
5	2	0
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drop table t1;
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create table t1 (a int not null , b int, primary key (a)) engine = BDB;
create table t2 (a int not null , b int, primary key (a)) engine = myisam;
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insert into t1 VALUES (1,3) , (2,3), (3,3);
select * from t1;
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a	b
1	3
2	3
3	3
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insert into t2 select * from t1;
select * from t2;
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a	b
1	3
2	3
3	3
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delete from t1 where b = 3;
select * from t1;
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a	b
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insert into t1 select * from t2;
select * from t1;
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a	b
1	3
2	3
3	3
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select * from t2;
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a	b
1	3
2	3
3	3
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drop table t1,t2;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
ggid varchar(32) binary DEFAULT '' NOT NULL,
email varchar(64) DEFAULT '' NOT NULL,
passwd varchar(32) binary DEFAULT '' NOT NULL,
PRIMARY KEY (id),
UNIQUE ggid (ggid)
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) ENGINE=BDB;
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insert into t1 (ggid,passwd) values ('test1','xxx');
insert into t1 (ggid,passwd) values ('test2','yyy');
insert into t1 (ggid,passwd) values ('test2','this will fail');
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ERROR 23000: Duplicate entry 'test2' for key 2
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insert into t1 (ggid,id) values ('this will fail',1);
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ERROR 23000: Duplicate entry '1' for key 1
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select * from t1 where ggid='test1';
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id	ggid	email	passwd
1	test1		xxx
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select * from t1 where passwd='xxx';
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id	ggid	email	passwd
1	test1		xxx
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select * from t1 where id=2;
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id	ggid	email	passwd
2	test2		yyy
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replace into t1 (ggid,id) values ('this will work',1);
replace into t1 (ggid,passwd) values ('test2','this will work');
update t1 set id=100,ggid='test2' where id=1;
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ERROR 23000: Duplicate entry 'test2' for key 2
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select * from t1;
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id	ggid	email	passwd
1	this will work		
3	test2		this will work
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select * from t1 where id=1;
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id	ggid	email	passwd
1	this will work		
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select * from t1 where id=999;
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id	ggid	email	passwd
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drop table t1;
CREATE TABLE t1 (
user_name varchar(12),
password text,
subscribed char(1),
user_id int(11) DEFAULT '0' NOT NULL,
quota bigint(20),
weight double,
access_date date,
access_time time,
approved datetime,
dummy_primary_key int(11) NOT NULL auto_increment,
PRIMARY KEY (dummy_primary_key)
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) ENGINE=BDB;
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INSERT INTO t1 VALUES ('user_0','somepassword','N',0,0,0,'2000-09-07','23:06:59','2000-09-07 23:06:59',1);
INSERT INTO t1 VALUES ('user_1','somepassword','Y',1,1,1,'2000-09-07','23:06:59','2000-09-07 23:06:59',2);
INSERT INTO t1 VALUES ('user_2','somepassword','N',2,2,1.4142135623731,'2000-09-07','23:06:59','2000-09-07 23:06:59',3);
INSERT INTO t1 VALUES ('user_3','somepassword','Y',3,3,1.7320508075689,'2000-09-07','23:06:59','2000-09-07 23:06:59',4);
INSERT INTO t1 VALUES ('user_4','somepassword','N',4,4,2,'2000-09-07','23:06:59','2000-09-07 23:06:59',5);
select  user_name, password , subscribed, user_id, quota, weight, access_date, access_time, approved, dummy_primary_key from t1 order by user_name;
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user_name	password	subscribed	user_id	quota	weight	access_date	access_time	approved	dummy_primary_key
user_0	somepassword	N	0	0	0	2000-09-07	23:06:59	2000-09-07 23:06:59	1
user_1	somepassword	Y	1	1	1	2000-09-07	23:06:59	2000-09-07 23:06:59	2
user_2	somepassword	N	2	2	1.4142135623731	2000-09-07	23:06:59	2000-09-07 23:06:59	3
user_3	somepassword	Y	3	3	1.7320508075689	2000-09-07	23:06:59	2000-09-07 23:06:59	4
user_4	somepassword	N	4	4	2	2000-09-07	23:06:59	2000-09-07 23:06:59	5
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drop table t1;
CREATE TABLE t1 (
id int(11) NOT NULL auto_increment,
parent_id int(11) DEFAULT '0' NOT NULL,
level tinyint(4) DEFAULT '0' NOT NULL,
KEY (id),
KEY parent_id (parent_id),
KEY level (level)
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) engine=bdb;
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INSERT INTO t1 VALUES (1,0,0),(3,1,1),(4,1,1),(8,2,2),(9,2,2),(17,3,2),(22,4,2),(24,4,2),(28,5,2),(29,5,2),(30,5,2),(31,6,2),(32,6,2),(33,6,2),(203,7,2),(202,7,2),(20,3,2),(157,0,0),(193,5,2),(40,7,2),(2,1,1),(15,2,2),(6,1,1),(34,6,2),(35,6,2),(16,3,2),(7,1,1),(36,7,2),(18,3,2),(26,5,2),(27,5,2),(183,4,2),(38,7,2),(25,5,2),(37,7,2),(21,4,2),(19,3,2),(5,1,1);
INSERT INTO t1 values (179,5,2);
update t1 set parent_id=parent_id+100;
select * from t1 where parent_id=102;
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id	parent_id	level
8	102	2
9	102	2
15	102	2
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update t1 set id=id+1000;
update t1 set id=1024 where id=1009;
select * from t1;
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id	parent_id	level
1001	100	0
1003	101	1
1004	101	1
1008	102	2
1024	102	2
1017	103	2
1022	104	2
1024	104	2
1028	105	2
1029	105	2
1030	105	2
1031	106	2
1032	106	2
1033	106	2
1203	107	2
1202	107	2
1020	103	2
1157	100	0
1193	105	2
1040	107	2
1002	101	1
1015	102	2
1006	101	1
1034	106	2
1035	106	2
1016	103	2
1007	101	1
1036	107	2
1018	103	2
1026	105	2
1027	105	2
1183	104	2
1038	107	2
1025	105	2
1037	107	2
1021	104	2
1019	103	2
1005	101	1
1179	105	2
578 579
update ignore t1 set id=id+1;
select * from t1;
580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619
id	parent_id	level
1002	100	0
1004	101	1
1005	101	1
1009	102	2
1025	102	2
1018	103	2
1023	104	2
1025	104	2
1029	105	2
1030	105	2
1031	105	2
1032	106	2
1033	106	2
1034	106	2
1204	107	2
1203	107	2
1021	103	2
1158	100	0
1194	105	2
1041	107	2
1003	101	1
1016	102	2
1007	101	1
1035	106	2
1036	106	2
1017	103	2
1008	101	1
1037	107	2
1019	103	2
1027	105	2
1028	105	2
1184	104	2
1039	107	2
1026	105	2
1038	107	2
1022	104	2
1020	103	2
1006	101	1
1180	105	2
620 621
update ignore t1 set id=1023 where id=1010;
select * from t1 where parent_id=102;
622 623 624 625
id	parent_id	level
1009	102	2
1025	102	2
1016	102	2
626
explain select level from t1 where level=1;
627
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
628
1	SIMPLE	t1	ref	level	level	1	const	6	Using index
629
select level,id from t1 where level=1;
630 631 632 633 634 635 636
level	id
1	1004
1	1005
1	1003
1	1007
1	1008
1	1006
637
select level,id,parent_id from t1 where level=1;
638 639 640 641 642 643 644
level	id	parent_id
1	1004	101
1	1005	101
1	1003	101
1	1007	101
1	1008	101
1	1006	101
645
select level,id from t1 where level=1 order by id;
646 647 648 649 650 651 652
level	id
1	1003
1	1004
1	1005
1	1006
1	1007
1	1008
653 654
delete from t1 where level=1;
select * from t1;
655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688
id	parent_id	level
1002	100	0
1009	102	2
1025	102	2
1018	103	2
1023	104	2
1025	104	2
1029	105	2
1030	105	2
1031	105	2
1032	106	2
1033	106	2
1034	106	2
1204	107	2
1203	107	2
1021	103	2
1158	100	0
1194	105	2
1041	107	2
1016	102	2
1035	106	2
1036	106	2
1017	103	2
1037	107	2
1019	103	2
1027	105	2
1028	105	2
1184	104	2
1039	107	2
1026	105	2
1038	107	2
1022	104	2
1020	103	2
1180	105	2
689 690 691 692 693 694 695 696 697 698 699
drop table t1;
CREATE TABLE t1 (
sca_code char(6) NOT NULL,
cat_code char(6) NOT NULL,
sca_desc varchar(50),
lan_code char(2) NOT NULL,
sca_pic varchar(100),
sca_sdesc varchar(50),
sca_sch_desc varchar(16),
PRIMARY KEY (sca_code, cat_code, lan_code),
INDEX sca_pic (sca_pic)
700
) engine = bdb ;
701 702
INSERT INTO t1 ( sca_code, cat_code, sca_desc, lan_code, sca_pic, sca_sdesc, sca_sch_desc) VALUES ( 'PD', 'J', 'PENDANT', 'EN', NULL, NULL, 'PENDANT'),( 'RI', 'J', 'RING', 'EN', NULL, NULL, 'RING'),( 'QQ', 'N', 'RING', 'EN', 'not null', NULL, 'RING');
select count(*) from t1 where sca_code = 'PD';
703 704
count(*)
1
705
select count(*) from t1 where sca_code <= 'PD';
706 707
count(*)
1
708
select count(*) from t1 where sca_pic is null;
709 710
count(*)
2
711 712
alter table t1 drop index sca_pic, add index sca_pic (cat_code, sca_pic);
select count(*) from t1 where sca_code='PD' and sca_pic is null;
713 714
count(*)
1
715
select count(*) from t1 where cat_code='E';
716
count(*)
717
0
718 719
alter table t1 drop index sca_pic, add index (sca_pic, cat_code);
select count(*) from t1 where sca_code='PD' and sca_pic is null;
720
count(*)
721
1
722
select count(*) from t1 where sca_pic >= 'n';
723 724
count(*)
1
725
select sca_pic from t1 where sca_pic is null;
726 727 728
sca_pic
NULL
NULL
729 730 731 732
update t1 set sca_pic="test" where sca_pic is null;
delete from t1 where sca_code='pd';
drop table t1;
set @a:=now();
733
CREATE TABLE t1 (a int not null, b timestamp not null, primary key (a)) engine=bdb;
734 735
insert into t1 (a) values(1),(2),(3);
select t1.a from t1 natural join t1 as t2 where t1.b >= @a order by t1.a;
736 737 738 739
a
1
2
3
740 741
update t1 set a=5 where a=1;
select a from t1;
742 743 744 745
a
2
3
5
746 747
drop table t1;
flush logs;
748
create table t1 (b blob, i int, key (b(100)), key (i), key (i, b(20))) engine=bdb;
749 750
insert into t1 values ('this is a blob', 1), (null, -1), (null, null),("",1),("",2),("",3);
select b from t1 where b = 'this is a blob';
751 752
b
this is a blob
753
select * from t1 where b like 't%';
754 755
b	i
this is a blob	1
756
select b, i from t1 where b is not null;
757 758
b	i
this is a blob	1
759 760 761
	1
	2
	3
762
select * from t1 where b is null and i > 0;
763
b	i
764
select * from t1 where i is NULL;
765
b	i
766
NULL	NULL
767 768
update t1 set b='updated' where i=1;
select * from t1;
769 770 771 772 773 774 775
b	i
updated	1
NULL	-1
NULL	NULL
updated	1
	2
	3
776
drop table t1;
777
create table t1 (a varchar(100) not null, primary key(a), b int not null) engine=bdb;
778 779
insert into t1 values("hello",1),("world",2);
select * from t1 order by b desc;
780 781 782
a	b
world	2
hello	1
783
optimize table t1;
784 785
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
786
show keys from t1;
787 788
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	a	A	2	NULL	NULL		BTREE	
789
drop table t1;
790
create table t1 (i int, j int )ENGINE=BDB;
791 792
insert into t1 values (1,2);
select * from t1 where i=1 and j=2;
793 794
i	j
1	2
795 796
create index ax1 on t1 (i,j);
select * from t1 where i=1 and j=2;
797 798
i	j
1	2
799 800 801 802 803 804 805 806
drop table t1;
create table t1
(
branch_id	int		auto_increment	primary key,
branch_name	varchar(255)	not null,
branch_active	int		not null 	default 1,
unique  branch_name(branch_name),
index	branch_active(branch_active)
807
) engine=bdb;
808 809 810 811 812 813 814
create table t2
(
target_id	int		auto_increment	primary key,
target_name	varchar(255)	not null,
target_active	int		not null 	default 1,
unique	target_name(target_name),
index	target_active(target_active)
815
) engine=bdb;
816 817 818 819 820 821 822
create table t3
(
platform_id	int		auto_increment	primary key,
platform_name	varchar(255)	not null,
platform_active	int		not null 	default 1,
unique	platform_name(platform_name),
index	platform_active(platform_active)
823
) engine=bdb;
824 825 826 827 828 829 830 831
create table t4
(
product_id	int		auto_increment	primary key,
product_name	varchar(255)	not null,
version_file	varchar(255)	not null,
product_active	int		not null 	default 1,
unique	product_name(product_name),
index	product_active(product_active)
832
) engine=bdb;
833 834 835 836 837 838 839 840 841 842 843
create table t5
(
product_file_id		int		auto_increment	primary key,
product_id		int		not null,
file_name		varchar(255)	not null,
/* cvs module used to find the file version */
module_name		varchar(255)	not null,
/* flag whether the file is still included in the product */
file_included		int		not null	default 1,
unique	product_file(product_id,file_name),
index	file_included(file_included)
844
) engine=bdb;
845 846 847 848 849 850 851 852 853 854 855
create table t6
(
file_platform_id	int		auto_increment	primary key,
product_file_id		int		not null,
platform_id		int		not null,
branch_id		int		not null,
/* filename in the build system */
build_filename		varchar(255)	not null,
/* default filename in the build archive */
archive_filename	varchar(255)	not null,
unique  file_platform(product_file_id,platform_id,branch_id)
856
) engine=bdb;
857 858 859 860 861 862 863 864 865 866
create table t8
(
archive_id	int		auto_increment	primary key,
branch_id	int		not null,
target_id	int		not null,
platform_id	int		not null,
product_id	int		not null,
status_id	int		not null	default 1,
unique  archive(branch_id,target_id,platform_id,product_id),
index	status_id(status_id)
867
) engine=bdb;
868 869 870 871 872 873 874 875 876 877 878 879
create table t7
(
build_id	int		auto_increment	primary key,
branch_id	int		not null,
target_id	int		not null,
build_number	int		not null,
build_date	date		not null,
/* build system tag, e.g. 'rmanight-022301-1779' */
build_tag	varchar(255)	not null,	
/* path relative to the build archive root, e.g. 'current' */
build_path	text		not null,	
unique  build(branch_id,target_id,build_number)
880
) engine=bdb;
881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
insert into t1 (branch_name)
values ('RealMedia');
insert into t1 (branch_name)
values ('RP8REV');
insert into t1 (branch_name)
values ('SERVER_8_0_GOLD');
insert into t2 (target_name)
values ('rmanight');
insert into t2 (target_name)
values ('playerall');
insert into t2 (target_name)
values ('servproxyall');
insert into t3 (platform_name)
values ('linux-2.0-libc6-i386');
insert into t3 (platform_name)
values ('win32-i386');
insert into t4 (product_name, version_file)
values ('realserver', 'servinst');
insert into t4 (product_name, version_file)
values ('realproxy', 'prxyinst');
insert into t4 (product_name, version_file)
values ('realplayer', 'playinst');
insert into t4 (product_name, version_file)
values ('plusplayer', 'plusinst');
create temporary table tmp1
select branch_id, target_id, platform_id, product_id
from t1, t2, t3, t4 ;
create temporary table tmp2 
select tmp1.branch_id, tmp1.target_id, tmp1.platform_id, tmp1.product_id 
from tmp1 left join t8 
using (branch_id,target_id,platform_id,product_id) 
where t8.archive_id is null ;
insert into t8 
(branch_id, target_id, platform_id, product_id, status_id)
select branch_id, target_id, platform_id, product_id, 1
from tmp2 ;
drop table tmp1 ;
drop table tmp2 ;
insert into t5 (product_id, file_name, module_name)
values (1, 'servinst', 'server');
insert into t5 (product_id, file_name, module_name)
values (2, 'prxyinst', 'server');
insert into t5 (product_id, file_name, module_name)
values (3, 'playinst', 'rpapp');
insert into t5 (product_id, file_name, module_name)
values (4, 'plusinst', 'rpapp');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (1, 2, 3, 'servinst.exe', 'win32-servinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (1, 1, 3, 'v80_linux-2.0-libc6-i386_servinst.bin', 'linux2-servinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (3, 2, 2, 'playinst.exe', 'win32-playinst.exe');
insert into t6 
(product_file_id,platform_id,branch_id,build_filename,archive_filename)
values (4, 2, 2, 'playinst.exe', 'win32-playinst.exe');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (2, 2, 1071, 'playerall-022101-1071', '2001-02-21', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (2, 2, 1072, 'playerall-022201-1072', '2001-02-22', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (3, 3, 388, 'servproxyall-022201-388', '2001-02-22', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (3, 3, 389, 'servproxyall-022301-389', '2001-02-23', 'current');
insert into t7 
(branch_id,target_id,build_number,build_tag,build_date,build_path)
values (4, 4, 100, 'foo target-010101-100', '2001-01-01', 'current');
update t8
set status_id=2
where branch_id=2 and target_id=2 and platform_id=2 and product_id=1;
select t7.build_path
from 
t1, 
t7, 
t2, 
t3, 
t4,
t5, 
t6
where 
t7.branch_id = t1.branch_id and 
t7.target_id = t2.target_id and 
t5.product_id = t4.product_id and
t6.product_file_id = t5.product_file_id and
t6.platform_id = t3.platform_id and
t6.branch_id = t6.branch_id and
t7.build_id = 1 and
t4.product_id = 3 and
t5.file_name = 'playinst' and
t3.platform_id = 2;
977 978
build_path
current
979 980 981 982 983
drop table t1, t2, t3, t4, t5, t6, t7, t8;
CREATE TABLE t1 (
a tinytext NOT NULL,
b tinyint(3) unsigned NOT NULL default '0',
PRIMARY KEY (a(32),b)
984
) ENGINE=BDB;
985 986
INSERT INTO t1 VALUES ('a',1),('a',2);
SELECT * FROM t1 WHERE a='a' AND b=2;
987 988
a	b
a	2
989
SELECT * FROM t1 WHERE a='a' AND b in (2);
990 991
a	b
a	2
992
SELECT * FROM t1 WHERE a='a' AND b in (1,2);
993 994 995
a	b
a	1
a	2
996 997 998 999 1000
drop table t1;
CREATE TABLE t1 (
a int3 unsigned NOT NULL,
b int1 unsigned NOT NULL,
UNIQUE (a, b)
1001
) ENGINE = BDB;
1002 1003
INSERT INTO t1 VALUES (1, 1);
SELECT MIN(B),MAX(b) FROM t1 WHERE t1.a = 1;
1004 1005
MIN(B)	MAX(b)
1	1
1006
drop table t1;
1007
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
1008 1009 1010
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
LOCK TABLES t1 WRITE;
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
1011
ERROR 23000: Duplicate entry '1-1' for key 1
1012
select id from t1;
1013 1014 1015 1016
id
0
1
2
1017
select id from t1;
1018 1019 1020 1021
id
0
1
2
1022 1023
UNLOCK TABLES;
DROP TABLE t1;
1024
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
1025 1026 1027 1028
insert into t1 values (0,0,0,'ABCDEFGHIJ'),(2,2,2,'BCDEFGHIJK'),(1,1,1,'CDEFGHIJKL');
LOCK TABLES t1 WRITE;
begin;
insert into t1 values (99,1,2,'D'),(1,1,2,'D');
1029
ERROR 23000: Duplicate entry '1-1' for key 1
1030
select id from t1;
1031 1032 1033 1034
id
0
1
2
1035 1036 1037
insert ignore into t1 values (100,1,2,'D'),(1,1,99,'D');
commit;
select id,id3 from t1;
1038 1039 1040 1041 1042
id	id3
0	0
1	1
2	2
100	2
1043 1044
UNLOCK TABLES;
DROP TABLE t1;
1045 1046
CREATE TABLE t1 (SYAIN_NO char(5) NOT NULL default '', KINMU_DATE char(6) NOT NULL default '', PRIMARY KEY  (SYAIN_NO,KINMU_DATE)) ENGINE=BerkeleyDB;
CREATE TABLE t2 ( SYAIN_NO char(5) NOT NULL default '',STR_DATE char(8) NOT NULL default '',PRIMARY KEY  (SYAIN_NO,STR_DATE) ) ENGINE=BerkeleyDB;
1047
select T1.KINMU_DATE from t1 T1 ,t2 T2 where  T1.SYAIN_NO = '12345' and T1.KINMU_DATE = '200106' and T2.SYAIN_NO = T1.SYAIN_NO;
1048
KINMU_DATE
1049
select T1.KINMU_DATE from t1 T1 ,t2 T2 where  T1.SYAIN_NO = '12345' and T1.KINMU_DATE = '200106' and T2.SYAIN_NO = T1.SYAIN_NO;
1050
KINMU_DATE
1051
DROP TABLE t1,t2;
1052
create table t1 (a int(11) not null, b int(11) not null, unique (a,b)) engine=bdb;
1053 1054
insert into t1 values (1,1), (1,2);
select * from t1 where a = 1;
1055 1056 1057
a	b
1	1
1	2
1058
select t1.*, t2.* from t1, t1 t2 where t1.a = t2.a and t2.a = 1;
1059 1060 1061 1062 1063
a	b	a	b
1	1	1	1
1	1	1	2
1	2	1	1
1	2	1	2
1064
select * from t1 where a = 1;
1065 1066 1067
a	b
1	1
1	2
1068
drop table t1;
1069
create table t1 (id int NOT NULL,id2 int NOT NULL,id3 int NOT NULL,dummy1 char(30),primary key (id,id2),index index_id3 (id3)) engine=bdb;
1070
insert into t1 values (0,0,0,'ABCDEFGHIJ');
1071
create table t2 (id int NOT NULL,primary key (id)) engine=bdb;
1072 1073 1074
LOCK TABLES t1 WRITE, t2 WRITE;
insert into t2 values(1);
SELECT t1.* FROM t1 WHERE id IN (1);
1075
id	id2	id3	dummy1
1076
SELECT t1.* FROM t2 left outer join t1 on (t1.id=t2.id);
1077 1078
id	id2	id3	dummy1
NULL	NULL	NULL	NULL
1079 1080
delete from t1 where id3 >= 0 and id3 <= 0;
drop table t1,t2;
1081
CREATE TABLE t1 (i varchar(48) NOT NULL default '', p varchar(255) default NULL,s varchar(48) NOT NULL default '', PRIMARY KEY  (i), UNIQUE(p,s)) ENGINE=BDB;
1082 1083
INSERT INTO t1 VALUES ('00000000-e6c4ddeaa6-003b8-83458387','programs/xxxxxxxx.wmv','00000000-e6c4ddeb32-003bc-83458387');
SELECT * FROM t1 WHERE p='programs/xxxxxxxx.wmv';
1084 1085
i	p	s
00000000-e6c4ddeaa6-003b8-83458387	programs/xxxxxxxx.wmv	00000000-e6c4ddeb32-003bc-83458387
1086
drop table t1;
1087
CREATE TABLE t1 ( STR_DATE varchar(8) NOT NULL default '',INFO_NOTE varchar(200) default NULL,PRIMARY KEY  (STR_DATE) ) ENGINE=BerkeleyDB;
1088
select INFO_NOTE from t1 where STR_DATE = '20010610';
1089
INFO_NOTE
1090
select INFO_NOTE from t1 where STR_DATE < '20010610';
1091
INFO_NOTE
1092
select INFO_NOTE from t1 where STR_DATE > '20010610';
1093
INFO_NOTE
1094
drop table t1;
1095 1096
create table t1 (a int not null, b int, primary key (a)) engine =bdb;
create table t2 (a int not null, b int, primary key (a)) engine =bdb;
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116
insert into t1 values (2, 3),(1, 7),(10, 7);
insert into t2 values (2, 3),(1, 7),(10, 7);
select * from t1;
a	b
1	7
2	3
10	7
select * from t2;
a	b
1	7
2	3
10	7
delete t1, t2 from t1, t2 where t1.a = t2.a;
select * from t1;
a	b
select * from t2;
a	b
select * from t2;
a	b
drop table t1,t2;
1117
create table t1  (x int not null, index(x)) engine=bdb;
1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147
insert into t1 values (1), (2), (3), (4), (5), (6), (7), (8), (9), (10);
select * from t1 where x <= 10 and x >= 7;
x
7
8
9
10
select * from t1 where x <= 10 and x >= 7 order by x;
x
7
8
9
10
select * from t1 where x <= 10 and x >= 7 order by x desc;
x
10
9
8
7
select * from t1 where x <= 8 and x >= 5 order by x desc;
x
8
7
6
5
select * from t1 where x < 8 and x > 5 order by x desc;
x
7
6
drop table t1;
monty@mysql.com's avatar
monty@mysql.com committed
1148
create table t1 ( c char(8) not null ) engine=bdb;
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insert into t1 values ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9');
insert into t1 values ('A'),('B'),('C'),('D'),('E'),('F');
alter table t1 add b char(8) not null;
alter table t1 add a char(8) not null;
alter table t1 add primary key (a,b,c);
update t1 set a=c, b=c;
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create table t2 (c char(8) not null, b char(8) not null, a char(8) not null, primary key(a,b,c)) engine=bdb;
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insert into t2 select * from t1;
delete t1,t2 from t2,t1 where t1.a<'B' and t2.b=t1.b;
drop table t1,t2;
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create table t1 (a char(10), key(a), b int not null, key(b)) engine=bdb;
insert into t1 values ('a',1),('A',2);
explain select a from t1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
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select a from t1;
a
a
A
explain select b from t1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	NULL	b	4	NULL	2	Using index
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select b from t1;
b
1
2
alter table t1 modify a char(10) binary;
explain select a from t1;
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id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	NULL	a	11	NULL	2	Using index
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select a from t1;
a
A
a
drop table t1;
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create table t1(
pk1 text not null, pk2 text not null, pk3 char(4),
key1 int, key2 int,
primary key(pk1(4), pk2(4), pk3), key(key1), key(key2)
) engine=bdb;
insert into t1 values (concat('aaa-', repeat('A', 4000)),
concat('eee-', repeat('e', 4000)), 'a++a', 1, 1);
insert into t1 values (concat('bbb-', repeat('B', 4000)),
concat('ggg-', repeat('G', 4000)), 'b++b', 1, 1);
select substring(pk1, 1, 4), substring(pk1, 4001),
substring(pk2, 1, 4), substring(pk2, 4001), pk3, key1, key2
from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
substring(pk1, 1, 4)	substring(pk1, 4001)	substring(pk2, 1, 4)	substring(pk2, 4001)	pk3	key1	key2
aaa-	AAAA	eee-	eeee	a++a	1	1
bbb-	BBBB	ggg-	GGGG	b++b	1	1
drop table t1;
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create table t1 (
pk1 varchar(8) not null default '',
pk2 varchar(4) not null default '',
key1 int(11) default null,
key2 int(11) default null,
primary key  (pk1,pk2),
key key1 (key1),
key key2 (key2)) engine=bdb;
insert into t1 values ('','empt',2,2),  ('a','a--a',2,2),
('bb','b--b',2,2),  ('ccc','c--c',2,2),  ('dddd','d--d',2,2);
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
pk1	pk2	key1	key2
	empt	2	2
a	a--a	2	2
bb	b--b	2	2
ccc	c--c	2	2
dddd	d--d	2	2
drop table t1;
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set autocommit=0;
create table t1(b varchar(30)) engine=bdb;
insert into t1 values ('one');
commit;
select b FROM t1 outer_table where
exists (select 'two' from t1 where 'two' = outer_table.b);
b
drop table t1;
set autocommit=1;
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create table t1(a int primary key, b varchar(30)) engine=bdb;
insert into t1 values (1,'one'), (2,'two'), (3,'three'), (4,'four');
create table t2 like t1;
insert t2 select * from t1;
select a from t1 where a in (select a from t2);
a
1
2
3
4
delete from t2;
insert into t2 (a, b)
select a, b from t1 where (a, b) in (select a, b from t1);
select * from t2;
a	b
1	one
2	two
3	three
4	four
drop table t1, t2;
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create table t1 (a int, b varchar(30), primary key(a)) engine = bdb;
insert into t1 values (1,'one');
commit;
truncate t1;
select * from t1;
a	b
drop table t1;
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SET NAMES utf8;
create table t1 (a varchar(255) character set utf8) engine=bdb;
set @a:= convert(repeat(_latin1 0xFF, 255) using utf8);
insert into t1 values (@a);
select a, length(a), char_length(a) from t1;
a	length(a)	char_length(a)
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ	510	255
drop table t1;
SET NAMES latin1;
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CREATE TABLE t1 (
id       int unsigned NOT NULL auto_increment,
list_id  smallint unsigned NOT NULL,
term     TEXT NOT NULL,
PRIMARY KEY(id),
INDEX(list_id, term(4))
) ENGINE=BDB CHARSET=utf8;
INSERT INTO t1 SET list_id = 1, term = "letterc";
INSERT INTO t1 SET list_id = 1, term = "letterb";
INSERT INTO t1 SET list_id = 1, term = "lettera";
INSERT INTO t1 SET list_id = 1, term = "letterd";
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterc");
id
1
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterb");
id
2
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "lettera");
id
3
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterd");
id
4
DROP TABLE t1;
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create temporary table t1 (a int, primary key(a)) engine=bdb;
select * from t1;
a
alter table t1 add b int;
select * from t1;
a	b
drop table t1;
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set storage_engine=bdb;
drop table if exists t1,t2,t3;
--- Testing varchar ---
--- Testing varchar ---
create table t1 (v varchar(10), c char(10), t text);
insert into t1 values('+ ', '+ ', '+ ');
set @a=repeat(' ',20);
insert into t1 values (concat('+',@a),concat('+',@a),concat('+',@a));
Warnings:
Warning	1265	Data truncated for column 'v' at row 1
select concat('*',v,'*',c,'*',t,'*') from t1;
concat('*',v,'*',c,'*',t,'*')
*+ *+*+ *
*+         *+*+                    *
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
create table t2 like t1;
show create table t2;
Table	Create Table
t2	CREATE TABLE `t2` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
create table t3 select * from t1;
show create table t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify c varchar(10);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` varchar(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify v char(10);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) default NULL,
  `c` varchar(10) default NULL,
  `t` text
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
alter table t1 modify t varchar(10);
Warnings:
Warning	1265	Data truncated for column 't' at row 2
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) default NULL,
  `c` varchar(10) default NULL,
  `t` varchar(10) default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
select concat('*',v,'*',c,'*',t,'*') from t1;
concat('*',v,'*',c,'*',t,'*')
*+*+*+ *
*+*+*+         *
drop table t1,t2,t3;
create table t1 (v varchar(10), c char(10), t text, key(v), key(c), key(t(10)));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text,
  KEY `v` (`v`),
  KEY `c` (`c`),
  KEY `t` (`t`(10))
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
select count(*) from t1;
count(*)
270
insert into t1 values(concat('a',char(1)),concat('a',char(1)),concat('a',char(1)));
select count(*) from t1 where v='a';
count(*)
10
select count(*) from t1 where c='a';
count(*)
10
select count(*) from t1 where t='a';
count(*)
10
select count(*) from t1 where v='a  ';
count(*)
10
select count(*) from t1 where c='a  ';
count(*)
10
select count(*) from t1 where t='a  ';
count(*)
10
select count(*) from t1 where v between 'a' and 'a ';
count(*)
10
select count(*) from t1 where v between 'a' and 'a ' and v between 'a  ' and 'b\n';
count(*)
10
select count(*) from t1 where v like 'a%';
count(*)
11
select count(*) from t1 where c like 'a%';
count(*)
11
select count(*) from t1 where t like 'a%';
count(*)
11
select count(*) from t1 where v like 'a %';
count(*)
9
explain select count(*) from t1 where v='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	v	v	13	const	10	Using where
explain select count(*) from t1 where c='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	c	c	11	const	10	Using where
explain select count(*) from t1 where t='a  ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	t	t	13	NULL	10	Using where
explain select count(*) from t1 where v like 'a%';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	11	Using where
explain select count(*) from t1 where v between 'a' and 'a ';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	10	Using where
explain select count(*) from t1 where v between 'a' and 'a ' and v between 'a  ' and 'b\n';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	v	v	13	NULL	10	Using where
alter table t1 add unique(v);
ERROR 23000: Duplicate entry '{ ' for key 1
alter table t1 add key(v);
select concat('*',v,'*',c,'*',t,'*') as qq from t1 where v='a';
qq
*a*a*a*
*a *a*a *
*a  *a*a  *
*a   *a*a   *
*a    *a*a    *
*a     *a*a     *
*a      *a*a      *
*a       *a*a       *
*a        *a*a        *
*a         *a*a         *
explain select * from t1 where v='a';
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref	v,v_2	v	13	const	10	Using where
select v,count(*) from t1 group by v limit 10;
v	count(*)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select v,count(t) from t1 group by v limit 10;
v	count(t)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select v,count(c) from t1 group by v limit 10;
v	count(c)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result v,count(t) from t1 group by v limit 10;
v	count(t)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result v,count(c) from t1 group by v limit 10;
v	count(c)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select c,count(*) from t1 group by c limit 10;
c	count(*)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select c,count(t) from t1 group by c limit 10;
c	count(t)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result c,count(t) from t1 group by c limit 10;
c	count(t)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select t,count(*) from t1 group by t limit 10;
t	count(*)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select t,count(t) from t1 group by t limit 10;
t	count(t)
a	1
a	10
b	10
c	10
d	10
e	10
f	10
g	10
h	10
i	10
select sql_big_result t,count(t) from t1 group by t limit 10;
t	count(t)
a	1
a         	10
b         	10
c         	10
d         	10
e         	10
f         	10
g         	10
h         	10
i         	10
drop table t1;
create table t1 (a char(10), unique (a));
insert into t1 values ('a   ');
insert into t1 values ('a ');
ERROR 23000: Duplicate entry 'a' for key 1
alter table t1 modify a varchar(10);
insert into t1 values ('a '),('a  '),('a   '),('a         ');
ERROR 23000: Duplicate entry 'a ' for key 1
insert into t1 values ('a     ');
ERROR 23000: Duplicate entry 'a     ' for key 1
insert into t1 values ('a          ');
ERROR 23000: Duplicate entry 'a         ' for key 1
insert into t1 values ('a ');
ERROR 23000: Duplicate entry 'a ' for key 1
update t1 set a='a  ' where a like 'a%';
select concat(a,'.') from t1;
concat(a,'.')
a  .
update t1 set a='abc    ' where a like 'a ';
select concat(a,'.') from t1;
concat(a,'.')
a  .
update t1 set a='a      ' where a like 'a %';
select concat(a,'.') from t1;
concat(a,'.')
a      .
update t1 set a='a  ' where a like 'a      ';
select concat(a,'.') from t1;
concat(a,'.')
a  .
drop table t1;
create table t1 (v varchar(10), c char(10), t text, key(v(5)), key(c(5)), key(t(5)));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL,
  `t` text,
  KEY `v` (`v`(5)),
  KEY `c` (`c`(5)),
  KEY `t` (`t`(5))
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v char(10) character set utf8);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` char(10) character set utf8 default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v varchar(10), c char(10)) row_format=fixed;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` varchar(10) default NULL,
  `c` char(10) default NULL
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1 ROW_FORMAT=FIXED
insert into t1 values('a','a'),('a ','a ');
select concat('*',v,'*',c,'*') from t1;
concat('*',v,'*',c,'*')
*a*a*
*a *a*
drop table t1;
create table t1 (v varchar(65530), key(v(10)));
insert into t1 values(repeat('a',65530));
select length(v) from t1 where v=repeat('a',65530);
length(v)
65530
drop table t1;
create table t1 (v varchar(65530), key(v));
Warnings:
Warning	1071	Specified key was too long; max key length is 255 bytes
drop table if exists t1;
create table t1 (v varchar(65536));
Warnings:
Note	1246	Converting column 'v' from VARCHAR to TEXT
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` mediumtext
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
create table t1 (v varchar(65530) character set utf8);
Warnings:
Note	1246	Converting column 'v' from VARCHAR to TEXT
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `v` mediumtext character set utf8
) ENGINE=BerkeleyDB DEFAULT CHARSET=latin1
drop table t1;
set storage_engine=MyISAM;