drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
...
...
@@ -2094,855 +2092,68 @@ t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE
t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE
t2 1 fld3 1 fld3 A NULL NULL NULL BTREE
drop table t4, t3, t2, t1;
DO 1;
DO benchmark(100,1+1),1,1;
do default;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
do foobar;
ERROR 42S22: Unknown column 'foobar' in 'field list'
INSERT INTO t1 VALUES (200001,2,1,1,100,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\E$',''),(200002,2,2,1,101,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\C$',''),(200003,1,3,2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,1,0,1,20020425060427,'c:',NULL);
INSERT INTO t2 VALUES (1,3,10,'2002-06-01 08:00:00',35),(1,3,1010,'2002-06-01 12:00:01',35);
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= 'wrong-date-value' AND b.sampletime < 'wrong-date-value' AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
Warnings:
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= NULL AND b.sampletime < NULL AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
DROP TABLE t1,t2;
create table t1 ( A_Id bigint(20) NOT NULL default '0', A_UpdateBy char(10) NOT NULL default '', A_UpdateDate bigint(20) NOT NULL default '0', A_UpdateSerial int(11) NOT NULL default '0', other_types bigint(20) NOT NULL default '0', wss_type bigint(20) NOT NULL default '0');
INSERT INTO t1 VALUES (102935998719055004,'brade',1029359987,2,102935229116544068,102935229216544093);
select wss_type from t1 where wss_type ='102935229216544106';
wss_type
select wss_type from t1 where wss_type ='102935229216544105';
wss_type
select wss_type from t1 where wss_type ='102935229216544104';
wss_type
select wss_type from t1 where wss_type ='102935229216544093';
wss_type
102935229216544093
select wss_type from t1 where wss_type =102935229216544093;
wss_type
102935229216544093
drop table t1;
select 1+2,"aaaa",3.13*2.0 into @a,@b,@c;
select @a;
@a
3
select @b;
@b
aaaa
select @c;
@c
6.260
create table t1 (a int not null auto_increment primary key);
insert into t1 values ();
insert into t1 values ();
insert into t1 values ();
select * from (t1 as t2 left join t1 as t3 using (a)), t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1, (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) straight_join t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 straight_join (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 using ( a );
a
1
2
3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) left outer join t1 on t1.a>1;
a a
1 2
1 3
2 2
2 3
3 2
3 3
select * from t1 left outer join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
1 NULL
2 1
2 2
2 3
3 1
3 2
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) left join t1 using ( a );
a
1
2
3
select * from t1 left join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural left join t1;
a
1
2
3
select * from t1 natural left join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) right join t1 on t1.a>1;
a a
NULL 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 right join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) right outer join t1 using ( a );
a
1
2
3
select * from t1 right outer join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural right join t1;
a
1
2
3
select * from t1 natural right join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from t1 natural join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural join t1;
a
1
2
3
drop table t1;
CREATE TABLE t1 ( aa char(2), id int(11) NOT NULL auto_increment, t2_id int(11) NOT NULL default '0', PRIMARY KEY (id), KEY replace_id (t2_id)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ("1",8264,2506),("2",8299,2517),("3",8301,2518),("4",8302,2519),("5",8303,2520),("6",8304,2521),("7",8305,2522);
CREATE TABLE t2 ( id int(11) NOT NULL auto_increment, PRIMARY KEY (id)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (2517), (2518), (2519), (2520), (2521), (2522);
select * from t1, t2 WHERE t1.t2_id = t2.id and t1.t2_id > 0 order by t1.id LIMIT 0, 5;
aa id t2_id id
2 8299 2517 2517
3 8301 2518 2518
4 8302 2519 2519
5 8303 2520 2520
6 8304 2521 2521
drop table t1,t2;
create table t1 (id1 int NOT NULL);
create table t2 (id2 int NOT NULL);
create table t3 (id3 int NOT NULL);
create table t4 (id4 int NOT NULL, id44 int NOT NULL, KEY (id4));
insert into t1 values (1);
insert into t1 values (2);
insert into t2 values (1);
insert into t4 values (1,1);
explain select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 system NULL NULL NULL NULL 0 const row not found
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
1 SIMPLE t2 ALL NULL NULL NULL NULL 1
1 SIMPLE t4 ALL id4 NULL NULL NULL 1 Using where
select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id1 id2 id3 id4 id44
1 1 NULL NULL NULL
drop table t1,t2,t3,t4;
create table t1(s varchar(10) not null);
create table t2(s varchar(10) not null primary key);
create table t3(s varchar(10) not null primary key);
insert into t1 values ('one\t'), ('two\t');
insert into t2 values ('one\r'), ('two\t');
insert into t3 values ('one '), ('two\t');
select * from t1 where s = 'one';
s
select * from t2 where s = 'one';
s
select * from t3 where s = 'one';
s
one
select * from t1,t2 where t1.s = t2.s;
s s
two two
select * from t2,t3 where t2.s = t3.s;
s s
two two
drop table t1, t2, t3;
create table t1 (a integer, b integer, index(a), index(b));
create table t2 (c integer, d integer, index(c), index(d));
insert into t1 values (1,2), (2,2), (3,2), (4,2);
insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
4 2 4 4
explain select * from t1 left join t2 on a=c where d = 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
4 2 4 4
drop table t1, t2;
CREATE TABLE t1 (
i int(11) NOT NULL default '0',
c char(10) NOT NULL default '',
PRIMARY KEY (i),
UNIQUE KEY c (c)
cont_nr int(11) NOT NULL auto_increment,
ver_nr int(11) NOT NULL default '0',
aufnr int(11) NOT NULL default '0',
username varchar(50) NOT NULL default '',
hdl_nr int(11) NOT NULL default '0',
eintrag date NOT NULL default '0000-00-00',
st_klasse varchar(40) NOT NULL default '',
st_wert varchar(40) NOT NULL default '',
st_zusatz varchar(40) NOT NULL default '',
st_bemerkung varchar(255) NOT NULL default '',
kunden_art varchar(40) NOT NULL default '',
mcbs_knr int(11) default NULL,
mcbs_aufnr int(11) NOT NULL default '0',
schufa_status char(1) default '?',
bemerkung text,
wirknetz text,
wf_igz int(11) NOT NULL default '0',
tarifcode varchar(80) default NULL,
recycle char(1) default NULL,
sim varchar(30) default NULL,
mcbs_tpl varchar(30) default NULL,
emp_nr int(11) NOT NULL default '0',
laufzeit int(11) default NULL,
hdl_name varchar(30) default NULL,
prov_hdl_nr int(11) NOT NULL default '0',
auto_wirknetz varchar(50) default NULL,
auto_billing varchar(50) default NULL,
touch timestamp NOT NULL,
kategorie varchar(50) default NULL,
kundentyp varchar(20) NOT NULL default '',
sammel_rech_msisdn varchar(30) NOT NULL default '',
p_nr varchar(9) NOT NULL default '',
suffix char(3) NOT NULL default '',
PRIMARY KEY (cont_nr),
KEY idx_aufnr(aufnr),
KEY idx_hdl_nr(hdl_nr),
KEY idx_st_klasse(st_klasse),
KEY ver_nr(ver_nr),
KEY eintrag_idx(eintrag),
KEY emp_nr_idx(emp_nr),
KEY wf_igz(wf_igz),
KEY touch(touch),
KEY hdl_tag(eintrag,hdl_nr),
KEY prov_hdl_nr(prov_hdl_nr),
KEY mcbs_aufnr(mcbs_aufnr),
KEY kundentyp(kundentyp),
KEY p_nr(p_nr,suffix)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'a');
INSERT INTO t1 VALUES (2,'b');
INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
DROP TABLE t1;
CREATE TABLE t1 ( a BLOB, INDEX (a(20)) );
CREATE TABLE t2 ( a BLOB, INDEX (a(20)) );
INSERT INTO t1 VALUES ('one'),('two'),('three'),('four'),('five');
INSERT INTO t2 VALUES ('one'),('two'),('three'),('four'),('five');
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 USE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 FORCE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
DROP TABLE t1, t2;
CREATE TABLE t1 ( city char(30) );
INSERT INTO t1 VALUES ('London');
INSERT INTO t1 VALUES ('Paris');
SELECT * FROM t1 WHERE city='London';
city
London
SELECT * FROM t1 WHERE city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city='London' AND city='london';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city='London' AND city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
city
London
DROP TABLE t1;
create table t1 (a int(11) unsigned, b int(11) unsigned);
insert into t1 values (1,0), (1,1), (1,2);
select a-b from t1 order by 1;
a-b
0
1
18446744073709551615
select a-b , (a-b < 0) from t1 order by 1;
a-b (a-b < 0)
0 0
1 0
18446744073709551615 0
select a-b as d, (a-b >= 0), b from t1 group by b having d >= 0;
d (a-b >= 0) b
1 1 0
0 1 1
18446744073709551615 1 2
select cast((a - b) as unsigned) from t1 order by 1;
cast((a - b) as unsigned)
0
1
18446744073709551615
drop table t1;
create table t1 (a int(11));
select all all * from t1;
a
select distinct distinct * from t1;
a
select all distinct * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
select distinct all * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
drop table t1;
CREATE TABLE t1 (
kunde_intern_id int(10) unsigned NOT NULL default '0',
kunde_id int(10) unsigned NOT NULL default '0',
FK_firma_id int(10) unsigned NOT NULL default '0',
aktuell enum('Ja','Nein') NOT NULL default 'Ja',
vorname varchar(128) NOT NULL default '',
nachname varchar(128) NOT NULL default '',
geloescht enum('Ja','Nein') NOT NULL default 'Nein',
create view v1 as select s1, s2, 'x' as s3 from t1;
select * from t1 natural join v1;
s1 s2 s3
insert into t1 values (1,'x',5);
select * from t1 natural join v1;
s1 s2 s3
INSERT INTO t1 VALUES (3359356,405,3359356,'Mustermann Musterfrau',52500,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1485525,2122316,'+','','N',1909160,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',3,24,'MobilCom Shop Koeln',52500,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359357,468,3359357,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1503580,2139699,'+','','P',1909171,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359358,407,3359358,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1501358,2137473,'N','','N',1909159,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359359,468,3359359,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1507831,2143894,'+','','P',1909162,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359360,0,0,'Mustermann Musterfrau',29674907,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1900169997,2414578,'+',NULL,'N',1909148,'',NULL,NULL,'RV99066_2',20,NULL,'POS',29674907,NULL,NULL,20010202105916,'Mobilfunk','','','97317481','007');
INSERT INTO t1 VALUES (3359361,406,3359361,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag storniert','','(7001-84):Storno, Kd. möchte nicht mehr','privat',NULL,0,'+','','P',1909150,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359362,406,3359362,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1509984,2145874,'+','','P',1909154,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
SELECT ELT(FIELD(kundentyp,'PP','PPA','PG','PGA','FK','FKA','FP','FPA','K','KA','V','VA',''), 'Privat (Private Nutzung)','Privat (Private Nutzung) Sitz im Ausland','Privat (geschaeftliche Nutzung)','Privat (geschaeftliche Nutzung) Sitz im Ausland','Firma (Kapitalgesellschaft)','Firma (Kapitalgesellschaft) Sitz im Ausland','Firma (Personengesellschaft)','Firma (Personengesellschaft) Sitz im Ausland','oeff. rechtl. Koerperschaft','oeff. rechtl. Koerperschaft Sitz im Ausland','Eingetragener Verein','Eingetragener Verein Sitz im Ausland','Typ unbekannt') AS Kundentyp ,kategorie FROM t1 WHERE hdl_nr < 2000000 AND kategorie IN ('Prepaid','Mobilfunk') AND st_klasse = 'Workflow' GROUP BY kundentyp ORDER BY kategorie;
drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
...
...
@@ -2094,855 +2092,68 @@ t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE
t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE
t2 1 fld3 1 fld3 A NULL NULL NULL BTREE
drop table t4, t3, t2, t1;
DO 1;
DO benchmark(100,1+1),1,1;
do default;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
do foobar;
ERROR 42S22: Unknown column 'foobar' in 'field list'
INSERT INTO t1 VALUES (200001,2,1,1,100,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\E$',''),(200002,2,2,1,101,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\C$',''),(200003,1,3,2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,1,0,1,20020425060427,'c:',NULL);
INSERT INTO t2 VALUES (1,3,10,'2002-06-01 08:00:00',35),(1,3,1010,'2002-06-01 12:00:01',35);
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= 'wrong-date-value' AND b.sampletime < 'wrong-date-value' AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
Warnings:
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= NULL AND b.sampletime < NULL AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
DROP TABLE t1,t2;
create table t1 ( A_Id bigint(20) NOT NULL default '0', A_UpdateBy char(10) NOT NULL default '', A_UpdateDate bigint(20) NOT NULL default '0', A_UpdateSerial int(11) NOT NULL default '0', other_types bigint(20) NOT NULL default '0', wss_type bigint(20) NOT NULL default '0');
INSERT INTO t1 VALUES (102935998719055004,'brade',1029359987,2,102935229116544068,102935229216544093);
select wss_type from t1 where wss_type ='102935229216544106';
wss_type
select wss_type from t1 where wss_type ='102935229216544105';
wss_type
select wss_type from t1 where wss_type ='102935229216544104';
wss_type
select wss_type from t1 where wss_type ='102935229216544093';
wss_type
102935229216544093
select wss_type from t1 where wss_type =102935229216544093;
wss_type
102935229216544093
drop table t1;
select 1+2,"aaaa",3.13*2.0 into @a,@b,@c;
select @a;
@a
3
select @b;
@b
aaaa
select @c;
@c
6.260
create table t1 (a int not null auto_increment primary key);
insert into t1 values ();
insert into t1 values ();
insert into t1 values ();
select * from (t1 as t2 left join t1 as t3 using (a)), t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1, (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) straight_join t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 straight_join (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 using ( a );
a
1
2
3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) left outer join t1 on t1.a>1;
a a
1 2
1 3
2 2
2 3
3 2
3 3
select * from t1 left outer join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
1 NULL
2 1
2 2
2 3
3 1
3 2
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) left join t1 using ( a );
a
1
2
3
select * from t1 left join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural left join t1;
a
1
2
3
select * from t1 natural left join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) right join t1 on t1.a>1;
a a
NULL 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 right join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) right outer join t1 using ( a );
a
1
2
3
select * from t1 right outer join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural right join t1;
a
1
2
3
select * from t1 natural right join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from t1 natural join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural join t1;
a
1
2
3
drop table t1;
CREATE TABLE t1 ( aa char(2), id int(11) NOT NULL auto_increment, t2_id int(11) NOT NULL default '0', PRIMARY KEY (id), KEY replace_id (t2_id)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ("1",8264,2506),("2",8299,2517),("3",8301,2518),("4",8302,2519),("5",8303,2520),("6",8304,2521),("7",8305,2522);
CREATE TABLE t2 ( id int(11) NOT NULL auto_increment, PRIMARY KEY (id)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (2517), (2518), (2519), (2520), (2521), (2522);
select * from t1, t2 WHERE t1.t2_id = t2.id and t1.t2_id > 0 order by t1.id LIMIT 0, 5;
aa id t2_id id
2 8299 2517 2517
3 8301 2518 2518
4 8302 2519 2519
5 8303 2520 2520
6 8304 2521 2521
drop table t1,t2;
create table t1 (id1 int NOT NULL);
create table t2 (id2 int NOT NULL);
create table t3 (id3 int NOT NULL);
create table t4 (id4 int NOT NULL, id44 int NOT NULL, KEY (id4));
insert into t1 values (1);
insert into t1 values (2);
insert into t2 values (1);
insert into t4 values (1,1);
explain select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 system NULL NULL NULL NULL 0 const row not found
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
1 SIMPLE t2 ALL NULL NULL NULL NULL 1
1 SIMPLE t4 ALL id4 NULL NULL NULL 1 Using where
select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id1 id2 id3 id4 id44
1 1 NULL NULL NULL
drop table t1,t2,t3,t4;
create table t1(s varchar(10) not null);
create table t2(s varchar(10) not null primary key);
create table t3(s varchar(10) not null primary key);
insert into t1 values ('one\t'), ('two\t');
insert into t2 values ('one\r'), ('two\t');
insert into t3 values ('one '), ('two\t');
select * from t1 where s = 'one';
s
select * from t2 where s = 'one';
s
select * from t3 where s = 'one';
s
one
select * from t1,t2 where t1.s = t2.s;
s s
two two
select * from t2,t3 where t2.s = t3.s;
s s
two two
drop table t1, t2, t3;
create table t1 (a integer, b integer, index(a), index(b));
create table t2 (c integer, d integer, index(c), index(d));
insert into t1 values (1,2), (2,2), (3,2), (4,2);
insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
4 2 4 4
explain select * from t1 left join t2 on a=c where d = 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
4 2 4 4
drop table t1, t2;
CREATE TABLE t1 (
i int(11) NOT NULL default '0',
c char(10) NOT NULL default '',
PRIMARY KEY (i),
UNIQUE KEY c (c)
cont_nr int(11) NOT NULL auto_increment,
ver_nr int(11) NOT NULL default '0',
aufnr int(11) NOT NULL default '0',
username varchar(50) NOT NULL default '',
hdl_nr int(11) NOT NULL default '0',
eintrag date NOT NULL default '0000-00-00',
st_klasse varchar(40) NOT NULL default '',
st_wert varchar(40) NOT NULL default '',
st_zusatz varchar(40) NOT NULL default '',
st_bemerkung varchar(255) NOT NULL default '',
kunden_art varchar(40) NOT NULL default '',
mcbs_knr int(11) default NULL,
mcbs_aufnr int(11) NOT NULL default '0',
schufa_status char(1) default '?',
bemerkung text,
wirknetz text,
wf_igz int(11) NOT NULL default '0',
tarifcode varchar(80) default NULL,
recycle char(1) default NULL,
sim varchar(30) default NULL,
mcbs_tpl varchar(30) default NULL,
emp_nr int(11) NOT NULL default '0',
laufzeit int(11) default NULL,
hdl_name varchar(30) default NULL,
prov_hdl_nr int(11) NOT NULL default '0',
auto_wirknetz varchar(50) default NULL,
auto_billing varchar(50) default NULL,
touch timestamp NOT NULL,
kategorie varchar(50) default NULL,
kundentyp varchar(20) NOT NULL default '',
sammel_rech_msisdn varchar(30) NOT NULL default '',
p_nr varchar(9) NOT NULL default '',
suffix char(3) NOT NULL default '',
PRIMARY KEY (cont_nr),
KEY idx_aufnr(aufnr),
KEY idx_hdl_nr(hdl_nr),
KEY idx_st_klasse(st_klasse),
KEY ver_nr(ver_nr),
KEY eintrag_idx(eintrag),
KEY emp_nr_idx(emp_nr),
KEY wf_igz(wf_igz),
KEY touch(touch),
KEY hdl_tag(eintrag,hdl_nr),
KEY prov_hdl_nr(prov_hdl_nr),
KEY mcbs_aufnr(mcbs_aufnr),
KEY kundentyp(kundentyp),
KEY p_nr(p_nr,suffix)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'a');
INSERT INTO t1 VALUES (2,'b');
INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
DROP TABLE t1;
CREATE TABLE t1 ( a BLOB, INDEX (a(20)) );
CREATE TABLE t2 ( a BLOB, INDEX (a(20)) );
INSERT INTO t1 VALUES ('one'),('two'),('three'),('four'),('five');
INSERT INTO t2 VALUES ('one'),('two'),('three'),('four'),('five');
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 USE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 FORCE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
DROP TABLE t1, t2;
CREATE TABLE t1 ( city char(30) );
INSERT INTO t1 VALUES ('London');
INSERT INTO t1 VALUES ('Paris');
SELECT * FROM t1 WHERE city='London';
city
London
SELECT * FROM t1 WHERE city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city='London' AND city='london';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city='London' AND city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
city
London
DROP TABLE t1;
create table t1 (a int(11) unsigned, b int(11) unsigned);
insert into t1 values (1,0), (1,1), (1,2);
select a-b from t1 order by 1;
a-b
0
1
18446744073709551615
select a-b , (a-b < 0) from t1 order by 1;
a-b (a-b < 0)
0 0
1 0
18446744073709551615 0
select a-b as d, (a-b >= 0), b from t1 group by b having d >= 0;
d (a-b >= 0) b
1 1 0
0 1 1
18446744073709551615 1 2
select cast((a - b) as unsigned) from t1 order by 1;
cast((a - b) as unsigned)
0
1
18446744073709551615
drop table t1;
create table t1 (a int(11));
select all all * from t1;
a
select distinct distinct * from t1;
a
select all distinct * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
select distinct all * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
drop table t1;
CREATE TABLE t1 (
kunde_intern_id int(10) unsigned NOT NULL default '0',
kunde_id int(10) unsigned NOT NULL default '0',
FK_firma_id int(10) unsigned NOT NULL default '0',
aktuell enum('Ja','Nein') NOT NULL default 'Ja',
vorname varchar(128) NOT NULL default '',
nachname varchar(128) NOT NULL default '',
geloescht enum('Ja','Nein') NOT NULL default 'Nein',
create view v1 as select s1, s2, 'x' as s3 from t1;
select * from t1 natural join v1;
s1 s2 s3
insert into t1 values (1,'x',5);
select * from t1 natural join v1;
s1 s2 s3
INSERT INTO t1 VALUES (3359356,405,3359356,'Mustermann Musterfrau',52500,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1485525,2122316,'+','','N',1909160,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',3,24,'MobilCom Shop Koeln',52500,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359357,468,3359357,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1503580,2139699,'+','','P',1909171,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359358,407,3359358,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1501358,2137473,'N','','N',1909159,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359359,468,3359359,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1507831,2143894,'+','','P',1909162,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359360,0,0,'Mustermann Musterfrau',29674907,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1900169997,2414578,'+',NULL,'N',1909148,'',NULL,NULL,'RV99066_2',20,NULL,'POS',29674907,NULL,NULL,20010202105916,'Mobilfunk','','','97317481','007');
INSERT INTO t1 VALUES (3359361,406,3359361,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag storniert','','(7001-84):Storno, Kd. möchte nicht mehr','privat',NULL,0,'+','','P',1909150,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359362,406,3359362,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1509984,2145874,'+','','P',1909154,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
SELECT ELT(FIELD(kundentyp,'PP','PPA','PG','PGA','FK','FKA','FP','FPA','K','KA','V','VA',''), 'Privat (Private Nutzung)','Privat (Private Nutzung) Sitz im Ausland','Privat (geschaeftliche Nutzung)','Privat (geschaeftliche Nutzung) Sitz im Ausland','Firma (Kapitalgesellschaft)','Firma (Kapitalgesellschaft) Sitz im Ausland','Firma (Personengesellschaft)','Firma (Personengesellschaft) Sitz im Ausland','oeff. rechtl. Koerperschaft','oeff. rechtl. Koerperschaft Sitz im Ausland','Eingetragener Verein','Eingetragener Verein Sitz im Ausland','Typ unbekannt') AS Kundentyp ,kategorie FROM t1 WHERE hdl_nr < 2000000 AND kategorie IN ('Prepaid','Mobilfunk') AND st_klasse = 'Workflow' GROUP BY kundentyp ORDER BY kategorie;
drop table if exists t1_1,t1_2,t9_1,t9_2,t1aa,t2aa;
drop view if exists v1;
CREATE TABLE t1 (
Period smallint(4) unsigned zerofill DEFAULT '0000' NOT NULL,
Varor_period smallint(4) unsigned DEFAULT '0' NOT NULL
...
...
@@ -2097,855 +2095,71 @@ t2 0 PRIMARY 1 auto A 1199 NULL NULL BTREE
t2 0 fld1 1 fld1 A 1199 NULL NULL BTREE
t2 1 fld3 1 fld3 A NULL NULL NULL BTREE
drop table t4, t3, t2, t1;
DO 1;
DO benchmark(100,1+1),1,1;
do default;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
do foobar;
ERROR 42S22: Unknown column 'foobar' in 'field list'
INSERT INTO t1 VALUES (200001,2,1,1,100,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\E$',''),(200002,2,2,1,101,1,1,1,0,0,0,1,0,1,20020425060057,'\\\\ARKIVIO-TESTPDC\\C$',''),(200003,1,3,2,NULL,NULL,NULL,NULL,NULL,NULL,NULL,1,0,1,20020425060427,'c:',NULL);
INSERT INTO t2 VALUES (1,3,10,'2002-06-01 08:00:00',35),(1,3,1010,'2002-06-01 12:00:01',35);
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= 'wrong-date-value' AND b.sampletime < 'wrong-date-value' AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
Warnings:
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
Warning 1292 Incorrect datetime value: 'wrong-date-value' for column 'sampletime' at row 1
SELECT a.gvid, (SUM(CASE b.sampletid WHEN 140 THEN b.samplevalue ELSE 0 END)) as the_success,(SUM(CASE b.sampletid WHEN 141 THEN b.samplevalue ELSE 0 END)) as the_fail,(SUM(CASE b.sampletid WHEN 142 THEN b.samplevalue ELSE 0 END)) as the_size,(SUM(CASE b.sampletid WHEN 143 THEN b.samplevalue ELSE 0 END)) as the_time FROM t1 a, t2 b WHERE a.hmid = b.hmid AND a.volid = b.volid AND b.sampletime >= NULL AND b.sampletime < NULL AND b.sampletid IN (140, 141, 142, 143) GROUP BY a.gvid;
gvid the_success the_fail the_size the_time
DROP TABLE t1,t2;
create table t1 ( A_Id bigint(20) NOT NULL default '0', A_UpdateBy char(10) NOT NULL default '', A_UpdateDate bigint(20) NOT NULL default '0', A_UpdateSerial int(11) NOT NULL default '0', other_types bigint(20) NOT NULL default '0', wss_type bigint(20) NOT NULL default '0');
INSERT INTO t1 VALUES (102935998719055004,'brade',1029359987,2,102935229116544068,102935229216544093);
select wss_type from t1 where wss_type ='102935229216544106';
wss_type
select wss_type from t1 where wss_type ='102935229216544105';
wss_type
select wss_type from t1 where wss_type ='102935229216544104';
wss_type
select wss_type from t1 where wss_type ='102935229216544093';
wss_type
102935229216544093
select wss_type from t1 where wss_type =102935229216544093;
wss_type
102935229216544093
drop table t1;
select 1+2,"aaaa",3.13*2.0 into @a,@b,@c;
select @a;
@a
3
select @b;
@b
aaaa
select @c;
@c
6.260
create table t1 (a int not null auto_increment primary key);
insert into t1 values ();
insert into t1 values ();
insert into t1 values ();
select * from (t1 as t2 left join t1 as t3 using (a)), t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1, (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) straight_join t1;
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 straight_join (t1 as t2 left join t1 as t3 using (a));
a a
1 1
2 1
3 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 on t1.a>1;
a a
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) inner join t1 using ( a );
a
1
2
3
select * from t1 inner join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) left outer join t1 on t1.a>1;
a a
1 2
1 3
2 2
2 3
3 2
3 3
select * from t1 left outer join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
1 NULL
2 1
2 2
2 3
3 1
3 2
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) left join t1 using ( a );
a
1
2
3
select * from t1 left join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural left join t1;
a
1
2
3
select * from t1 natural left join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) right join t1 on t1.a>1;
a a
NULL 1
1 2
2 2
3 2
1 3
2 3
3 3
select * from t1 right join (t1 as t2 left join t1 as t3 using (a)) on t1.a>1;
a a
2 1
3 1
2 2
3 2
2 3
3 3
select * from (t1 as t2 left join t1 as t3 using (a)) right outer join t1 using ( a );
a
1
2
3
select * from t1 right outer join (t1 as t2 left join t1 as t3 using (a)) using ( a );
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural right join t1;
a
1
2
3
select * from t1 natural right join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from t1 natural join (t1 as t2 left join t1 as t3 using (a));
a
1
2
3
select * from (t1 as t2 left join t1 as t3 using (a)) natural join t1;
a
1
2
3
drop table t1;
CREATE TABLE t1 ( aa char(2), id int(11) NOT NULL auto_increment, t2_id int(11) NOT NULL default '0', PRIMARY KEY (id), KEY replace_id (t2_id)) ENGINE=MyISAM;
INSERT INTO t1 VALUES ("1",8264,2506),("2",8299,2517),("3",8301,2518),("4",8302,2519),("5",8303,2520),("6",8304,2521),("7",8305,2522);
CREATE TABLE t2 ( id int(11) NOT NULL auto_increment, PRIMARY KEY (id)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (2517), (2518), (2519), (2520), (2521), (2522);
select * from t1, t2 WHERE t1.t2_id = t2.id and t1.t2_id > 0 order by t1.id LIMIT 0, 5;
aa id t2_id id
2 8299 2517 2517
3 8301 2518 2518
4 8302 2519 2519
5 8303 2520 2520
6 8304 2521 2521
drop table t1,t2;
create table t1 (id1 int NOT NULL);
create table t2 (id2 int NOT NULL);
create table t3 (id3 int NOT NULL);
create table t4 (id4 int NOT NULL, id44 int NOT NULL, KEY (id4));
insert into t1 values (1);
insert into t1 values (2);
insert into t2 values (1);
insert into t4 values (1,1);
explain select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 system NULL NULL NULL NULL 0 const row not found
1 SIMPLE t1 ALL NULL NULL NULL NULL 2
1 SIMPLE t2 ALL NULL NULL NULL NULL 1
1 SIMPLE t4 ALL id4 NULL NULL NULL 1 Using where
select * from t1 left join t2 on id1 = id2 left join t3 on id1 = id3
left join t4 on id3 = id4 where id2 = 1 or id4 = 1;
id1 id2 id3 id4 id44
1 1 NULL NULL NULL
drop table t1,t2,t3,t4;
create table t1(s varchar(10) not null);
create table t2(s varchar(10) not null primary key);
create table t3(s varchar(10) not null primary key);
insert into t1 values ('one\t'), ('two\t');
insert into t2 values ('one\r'), ('two\t');
insert into t3 values ('one '), ('two\t');
select * from t1 where s = 'one';
s
select * from t2 where s = 'one';
s
select * from t3 where s = 'one';
s
one
select * from t1,t2 where t1.s = t2.s;
s s
two two
select * from t2,t3 where t2.s = t3.s;
s s
two two
drop table t1, t2, t3;
create table t1 (a integer, b integer, index(a), index(b));
create table t2 (c integer, d integer, index(c), index(d));
insert into t1 values (1,2), (2,2), (3,2), (4,2);
insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
4 2 4 4
explain select * from t1 left join t2 on a=c where d = 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
4 2 4 4
drop table t1, t2;
CREATE TABLE t1 (
i int(11) NOT NULL default '0',
c char(10) NOT NULL default '',
PRIMARY KEY (i),
UNIQUE KEY c (c)
cont_nr int(11) NOT NULL auto_increment,
ver_nr int(11) NOT NULL default '0',
aufnr int(11) NOT NULL default '0',
username varchar(50) NOT NULL default '',
hdl_nr int(11) NOT NULL default '0',
eintrag date NOT NULL default '0000-00-00',
st_klasse varchar(40) NOT NULL default '',
st_wert varchar(40) NOT NULL default '',
st_zusatz varchar(40) NOT NULL default '',
st_bemerkung varchar(255) NOT NULL default '',
kunden_art varchar(40) NOT NULL default '',
mcbs_knr int(11) default NULL,
mcbs_aufnr int(11) NOT NULL default '0',
schufa_status char(1) default '?',
bemerkung text,
wirknetz text,
wf_igz int(11) NOT NULL default '0',
tarifcode varchar(80) default NULL,
recycle char(1) default NULL,
sim varchar(30) default NULL,
mcbs_tpl varchar(30) default NULL,
emp_nr int(11) NOT NULL default '0',
laufzeit int(11) default NULL,
hdl_name varchar(30) default NULL,
prov_hdl_nr int(11) NOT NULL default '0',
auto_wirknetz varchar(50) default NULL,
auto_billing varchar(50) default NULL,
touch timestamp NOT NULL,
kategorie varchar(50) default NULL,
kundentyp varchar(20) NOT NULL default '',
sammel_rech_msisdn varchar(30) NOT NULL default '',
p_nr varchar(9) NOT NULL default '',
suffix char(3) NOT NULL default '',
PRIMARY KEY (cont_nr),
KEY idx_aufnr(aufnr),
KEY idx_hdl_nr(hdl_nr),
KEY idx_st_klasse(st_klasse),
KEY ver_nr(ver_nr),
KEY eintrag_idx(eintrag),
KEY emp_nr_idx(emp_nr),
KEY wf_igz(wf_igz),
KEY touch(touch),
KEY hdl_tag(eintrag,hdl_nr),
KEY prov_hdl_nr(prov_hdl_nr),
KEY mcbs_aufnr(mcbs_aufnr),
KEY kundentyp(kundentyp),
KEY p_nr(p_nr,suffix)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'a');
INSERT INTO t1 VALUES (2,'b');
INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
DROP TABLE t1;
CREATE TABLE t1 ( a BLOB, INDEX (a(20)) );
CREATE TABLE t2 ( a BLOB, INDEX (a(20)) );
INSERT INTO t1 VALUES ('one'),('two'),('three'),('four'),('five');
INSERT INTO t2 VALUES ('one'),('two'),('three'),('four'),('five');
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 USE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 FORCE INDEX (a) ON t1.a=t2.a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 5
1 SIMPLE t2 ref a a 23 test.t1.a 2
DROP TABLE t1, t2;
CREATE TABLE t1 ( city char(30) );
INSERT INTO t1 VALUES ('London');
INSERT INTO t1 VALUES ('Paris');
SELECT * FROM t1 WHERE city='London';
city
London
SELECT * FROM t1 WHERE city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city='London' AND city='london';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city='London' AND city='london';
city
London
EXPLAIN SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 Using where
SELECT * FROM t1 WHERE city LIKE '%london%' AND city='London';
city
London
DROP TABLE t1;
create table t1 (a int(11) unsigned, b int(11) unsigned);
insert into t1 values (1,0), (1,1), (1,2);
select a-b from t1 order by 1;
a-b
0
1
18446744073709551615
select a-b , (a-b < 0) from t1 order by 1;
a-b (a-b < 0)
0 0
1 0
18446744073709551615 0
select a-b as d, (a-b >= 0), b from t1 group by b having d >= 0;
d (a-b >= 0) b
1 1 0
0 1 1
18446744073709551615 1 2
select cast((a - b) as unsigned) from t1 order by 1;
cast((a - b) as unsigned)
0
1
18446744073709551615
drop table t1;
create table t1 (a int(11));
select all all * from t1;
a
select distinct distinct * from t1;
a
select all distinct * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
select distinct all * from t1;
ERROR HY000: Incorrect usage of ALL and DISTINCT
drop table t1;
CREATE TABLE t1 (
kunde_intern_id int(10) unsigned NOT NULL default '0',
kunde_id int(10) unsigned NOT NULL default '0',
FK_firma_id int(10) unsigned NOT NULL default '0',
aktuell enum('Ja','Nein') NOT NULL default 'Ja',
vorname varchar(128) NOT NULL default '',
nachname varchar(128) NOT NULL default '',
geloescht enum('Ja','Nein') NOT NULL default 'Nein',
create view v1 as select s1, s2, 'x' as s3 from t1;
select * from t1 natural join v1;
s1 s2 s3
insert into t1 values (1,'x',5);
select * from t1 natural join v1;
s1 s2 s3
INSERT INTO t1 VALUES (3359356,405,3359356,'Mustermann Musterfrau',52500,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1485525,2122316,'+','','N',1909160,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',3,24,'MobilCom Shop Koeln',52500,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359357,468,3359357,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1503580,2139699,'+','','P',1909171,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359358,407,3359358,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1501358,2137473,'N','','N',1909159,'MobilComSuper92000D2',NULL,NULL,'MS9ND2',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359359,468,3359359,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1507831,2143894,'+','','P',1909162,'MobilComSuper9D1T10SFreisprech(Akquise)',NULL,NULL,'MS9NS1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359360,0,0,'Mustermann Musterfrau',29674907,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1900169997,2414578,'+',NULL,'N',1909148,'',NULL,NULL,'RV99066_2',20,NULL,'POS',29674907,NULL,NULL,20010202105916,'Mobilfunk','','','97317481','007');
INSERT INTO t1 VALUES (3359361,406,3359361,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag storniert','','(7001-84):Storno, Kd. möchte nicht mehr','privat',NULL,0,'+','','P',1909150,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',325,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
INSERT INTO t1 VALUES (3359362,406,3359362,'Mustermann Musterfrau',7001,'2000-05-20','workflow','Auftrag erledigt','Originalvertrag eingegangen und geprüft','','privat',1509984,2145874,'+','','P',1909154,'MobilComSuper92000D1(Akquise)',NULL,NULL,'MS9ND1',327,24,'MobilCom Intern',7003,NULL,'auto',20010202105916,'Mobilfunk','PP','','','');
SELECT ELT(FIELD(kundentyp,'PP','PPA','PG','PGA','FK','FKA','FP','FPA','K','KA','V','VA',''), 'Privat (Private Nutzung)','Privat (Private Nutzung) Sitz im Ausland','Privat (geschaeftliche Nutzung)','Privat (geschaeftliche Nutzung) Sitz im Ausland','Firma (Kapitalgesellschaft)','Firma (Kapitalgesellschaft) Sitz im Ausland','Firma (Personengesellschaft)','Firma (Personengesellschaft) Sitz im Ausland','oeff. rechtl. Koerperschaft','oeff. rechtl. Koerperschaft Sitz im Ausland','Eingetragener Verein','Eingetragener Verein Sitz im Ausland','Typ unbekannt') AS Kundentyp ,kategorie FROM t1 WHERE hdl_nr < 2000000 AND kategorie IN ('Prepaid','Mobilfunk') AND st_klasse = 'Workflow' GROUP BY kundentyp ORDER BY kategorie;