func_str.result

drop table if exists t1;
set names latin1;
select 'hello',"'hello'",'""hello""','''h''e''l''l''o''',"hel""lo",'hel\'lo';
hello	'hello'	""hello""	'h'e'l'l'o'	hel"lo	hel'lo
hello	'hello'	""hello""	'h'e'l'l'o'	hel"lo	hel'lo
select 'hello' 'monty';
hello
hellomonty
select length('\n\t\r\b\0\_\%\\');
length('\n\t\r\b\0\_\%\\')
10
select bit_length('\n\t\r\b\0\_\%\\');
bit_length('\n\t\r\b\0\_\%\\')
80
select concat('monty',' was here ','again'),length('hello'),char(ascii('h'));
concat('monty',' was here ','again')	length('hello')	char(ascii('h'))
monty was here again	5	h
select locate('he','hello'),locate('he','hello',2),locate('lo','hello',2) ;
locate('he','hello')	locate('he','hello',2)	locate('lo','hello',2)
1	0	4
select instr('hello','HE'), instr('hello',binary 'HE'), instr(binary 'hello','HE');
instr('hello','HE')	instr('hello',binary 'HE')	instr(binary 'hello','HE')
1	0	0
select position(binary 'll' in 'hello'),position('a' in binary 'hello');
position(binary 'll' in 'hello')	position('a' in binary 'hello')
3	0
select left('hello',2),right('hello',2),substring('hello',2,2),mid('hello',1,5) ;
left('hello',2)	right('hello',2)	substring('hello',2,2)	mid('hello',1,5)
he	lo	el	hello
select concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',substring('monty',5,1)) ;
concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',substring('monty',5,1))
happy
select substring_index('www.tcx.se','.',-2),substring_index('www.tcx.se','.',1);
substring_index('www.tcx.se','.',-2)	substring_index('www.tcx.se','.',1)
tcx.se	www
select substring_index('www.tcx.se','tcx',1),substring_index('www.tcx.se','tcx',-1);
substring_index('www.tcx.se','tcx',1)	substring_index('www.tcx.se','tcx',-1)
www.	.se
select substring_index('.tcx.se','.',-2),substring_index('.tcx.se','.tcx',-1);
substring_index('.tcx.se','.',-2)	substring_index('.tcx.se','.tcx',-1)
tcx.se	.se
select concat(':',ltrim('  left  '),':',rtrim('  right  '),':');
concat(':',ltrim('  left  '),':',rtrim('  right  '),':')
:left  :  right:
select concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':');
concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':')
:left: right:
select concat(':',trim(' m '),':',trim(BOTH FROM ' y '),':',trim('*' FROM '*s*'),':');
concat(':',trim(' m '),':',trim(BOTH FROM ' y '),':',trim('*' FROM '*s*'),':')
:m:y:s:
select concat(':',trim(BOTH 'ab' FROM 'ababmyabab'),':',trim(BOTH '*' FROM '***sql'),':');
concat(':',trim(BOTH 'ab' FROM 'ababmyabab'),':',trim(BOTH '*' FROM '***sql'),':')
:my:sql:
select concat(':',trim(LEADING '.*' FROM '.*my'),':',trim(TRAILING '.*' FROM 'sql.*.*'),':');
concat(':',trim(LEADING '.*' FROM '.*my'),':',trim(TRAILING '.*' FROM 'sql.*.*'),':')
:my:sql:
select TRIM("foo" FROM "foo"), TRIM("foo" FROM "foook"), TRIM("foo" FROM "okfoo");
TRIM("foo" FROM "foo")	TRIM("foo" FROM "foook")	TRIM("foo" FROM "okfoo")
	ok	ok
select concat_ws(', ','monty','was here','again');
concat_ws(', ','monty','was here','again')
monty, was here, again
select concat_ws(NULL,'a'),concat_ws(',',NULL,'');
concat_ws(NULL,'a')	concat_ws(',',NULL,'')
NULL	
select concat_ws(',','',NULL,'a');
concat_ws(',','',NULL,'a')
,a
SELECT CONCAT('"',CONCAT_WS('";"',repeat('a',60),repeat('b',60),repeat('c',60),repeat('d',100)), '"');
CONCAT('"',CONCAT_WS('";"',repeat('a',60),repeat('b',60),repeat('c',60),repeat('d',100)), '"')
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";"cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc";"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
select insert('txs',2,1,'hi'),insert('is ',4,0,'a'),insert('txxxxt',2,4,'es');
insert('txs',2,1,'hi')	insert('is ',4,0,'a')	insert('txxxxt',2,4,'es')
this	is a	test
select replace('aaaa','a','b'),replace('aaaa','aa','b'),replace('aaaa','a','bb'),replace('aaaa','','b'),replace('bbbb','a','c');
replace('aaaa','a','b')	replace('aaaa','aa','b')	replace('aaaa','a','bb')	replace('aaaa','','b')	replace('bbbb','a','c')
bbbb	bb	bbbbbbbb	aaaa	bbbb
select replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL') ;
replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL')
this is a REAL test
select soundex(''),soundex('he'),soundex('hello all folks');
soundex('')	soundex('he')	soundex('hello all folks')
	H000	H4142
select 'mood' sounds like 'mud';
'mood' sounds like 'mud'
1
select 'Glazgo' sounds like 'Liverpool';
'Glazgo' sounds like 'Liverpool'
0
select null sounds like 'null';
null sounds like 'null'
NULL
select 'null' sounds like null;
'null' sounds like null
NULL
select null sounds like null;
null sounds like null
NULL
select md5('hello');
md5('hello')
5d41402abc4b2a76b9719d911017c592
select sha('abc');
sha('abc')
a9993e364706816aba3e25717850c26c9cd0d89d
select sha1('abc');
sha1('abc')
a9993e364706816aba3e25717850c26c9cd0d89d
select aes_decrypt(aes_encrypt('abc','1'),'1');
aes_decrypt(aes_encrypt('abc','1'),'1')
abc
select aes_decrypt(aes_encrypt('abc','1'),1);
aes_decrypt(aes_encrypt('abc','1'),1)
abc
select aes_encrypt(NULL,"a");
aes_encrypt(NULL,"a")
NULL
select aes_encrypt("a",NULL);
aes_encrypt("a",NULL)
NULL
select aes_decrypt(NULL,"a");
aes_decrypt(NULL,"a")
NULL
select aes_decrypt("a",NULL);
aes_decrypt("a",NULL)
NULL
select aes_decrypt("a","a");
aes_decrypt("a","a")
NULL
select aes_decrypt(aes_encrypt("","a"),"a");
aes_decrypt(aes_encrypt("","a"),"a")

select repeat('monty',5),concat('*',space(5),'*');
repeat('monty',5)	concat('*',space(5),'*')
montymontymontymontymonty	*     *
select reverse('abc'),reverse('abcd');
reverse('abc')	reverse('abcd')
cba	dcba
select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12');
rpad('a',4,'1')	rpad('a',4,'12')	rpad('abcd',3,'12')
a111	a121	abc
select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12');
lpad('a',4,'1')	lpad('a',4,'12')	lpad('abcd',3,'12')
111a	121a	abc
select rpad(741653838,17,'0'),lpad(741653838,17,'0');
rpad(741653838,17,'0')	lpad(741653838,17,'0')
74165383800000000	00000000741653838
select rpad('abcd',7,'ab'),lpad('abcd',7,'ab');
rpad('abcd',7,'ab')	lpad('abcd',7,'ab')
abcdaba	abaabcd
select rpad('abcd',1,'ab'),lpad('abcd',1,'ab');
rpad('abcd',1,'ab')	lpad('abcd',1,'ab')
a	a
select LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'),GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD');
LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD')	GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD')
HAROLD	HARRY
select least(1,2,3) | greatest(16,32,8), least(5,4)*1,greatest(-1.0,1.0)*1,least(3,2,1)*1.0,greatest(1,1.1,1.0),least("10",9),greatest("A","B","0");
least(1,2,3) | greatest(16,32,8)	least(5,4)*1	greatest(-1.0,1.0)*1	least(3,2,1)*1.0	greatest(1,1.1,1.0)	least("10",9)	greatest("A","B","0")
33	4	1.0	1.0	1.1	9	B
select decode(encode(repeat("a",100000),"monty"),"monty")=repeat("a",100000);
decode(encode(repeat("a",100000),"monty"),"monty")=repeat("a",100000)
1
select decode(encode("abcdef","monty"),"monty")="abcdef";
decode(encode("abcdef","monty"),"monty")="abcdef"
1
select quote('\'\"\\test');
quote('\'\"\\test')
'\'"\\test'
select quote(concat('abc\'', '\\cba'));
quote(concat('abc\'', '\\cba'))
'abc\'\\cba'
select quote(1/0), quote('\0\Z');
quote(1/0)	quote('\0\Z')
NULL	'\0\Z'
select length(quote(concat(char(0),"test")));
length(quote(concat(char(0),"test")))
8
select reverse("");
reverse("")

select insert("aa",100,1,"b"),insert("aa",1,3,"b"),left("aa",-1),substring("a",1,2);
insert("aa",100,1,"b")	insert("aa",1,3,"b")	left("aa",-1)	substring("a",1,2)
aa	b		a
select elt(2,1),field(NULL,"a","b","c"),reverse("");
elt(2,1)	field(NULL,"a","b","c")	reverse("")
NULL	0	
select locate("a","b",2),locate("","a",1);
locate("a","b",2)	locate("","a",1)
0	1
select ltrim("a"),rtrim("a"),trim(BOTH "" from "a"),trim(BOTH " " from "a");
ltrim("a")	rtrim("a")	trim(BOTH "" from "a")	trim(BOTH " " from "a")
a	a	a	a
select concat("1","2")|0,concat("1",".5")+0.0;
concat("1","2")|0	concat("1",".5")+0.0
12	1.5
select substring_index("www.tcx.se","",3);
substring_index("www.tcx.se","",3)

select length(repeat("a",100000000)),length(repeat("a",1000*64));
length(repeat("a",100000000))	length(repeat("a",1000*64))
NULL	64000
select position("0" in "baaa" in (1)),position("0" in "1" in (1,2,3)),position("sql" in ("mysql"));
position("0" in "baaa" in (1))	position("0" in "1" in (1,2,3))	position("sql" in ("mysql"))
1	0	3
select position(("1" in (1,2,3)) in "01");
position(("1" in (1,2,3)) in "01")
2
select length(repeat("a",65500)),length(concat(repeat("a",32000),repeat("a",32000))),length(replace("aaaaa","a",concat(repeat("a",10000)))),length(insert(repeat("a",40000),1,30000,repeat("b",50000)));
length(repeat("a",65500))	length(concat(repeat("a",32000),repeat("a",32000)))	length(replace("aaaaa","a",concat(repeat("a",10000))))	length(insert(repeat("a",40000),1,30000,repeat("b",50000)))
65500	64000	50000	60000
select length(repeat("a",1000000)),length(concat(repeat("a",32000),repeat("a",32000),repeat("a",32000))),length(replace("aaaaa","a",concat(repeat("a",32000)))),length(insert(repeat("a",48000),1,1000,repeat("a",48000)));
length(repeat("a",1000000))	length(concat(repeat("a",32000),repeat("a",32000),repeat("a",32000)))	length(replace("aaaaa","a",concat(repeat("a",32000))))	length(insert(repeat("a",48000),1,1000,repeat("a",48000)))
1000000	96000	160000	95000
create table t1 ( domain char(50) );
insert into t1 VALUES ("hello.de" ), ("test.de" );
select domain from t1 where concat('@', trim(leading '.' from concat('.', domain))) = '@hello.de';
domain
hello.de
select domain from t1 where concat('@', trim(leading '.' from concat('.', domain))) = '@test.de';
domain
test.de
drop table t1;
CREATE TABLE t1 (
id int(10) unsigned NOT NULL,
title varchar(255) default NULL,
prio int(10) unsigned default NULL,
category int(10) unsigned default NULL,
program int(10) unsigned default NULL,
bugdesc text,
created datetime default NULL,
modified timestamp(14) NOT NULL,
bugstatus int(10) unsigned default NULL,
submitter int(10) unsigned default NULL
) TYPE=MyISAM;
INSERT INTO t1 VALUES (1,'Link',1,1,1,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa','2001-02-28 08:40:16',20010228084016,0,4);
SELECT CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter), '"') FROM t1;
CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter), '"')
"Link";"1";"1";"1";"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"2001-02-28 08:40:16";"20010228084016";"0";"4"
SELECT CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugstatus,submitter), '"') FROM t1;
CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugstatus,submitter), '"')
"Link";"1";"1";"1";"0";"4"
SELECT CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter) FROM t1;
CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter)
Link";"1";"1";"1";"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"2001-02-28 08:40:16";"20010228084016";"0";"4
SELECT bugdesc, REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb') from t1 group by bugdesc;
bugdesc	REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb')
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa	aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
drop table t1;
CREATE TABLE t1 (id int(11) NOT NULL auto_increment, tmp text NOT NULL, KEY id (id)) TYPE=MyISAM;
INSERT INTO t1 VALUES (1, 'a545f661efdd1fb66fdee3aab79945bf');
SELECT 1 FROM t1 WHERE tmp=AES_DECRYPT(tmp,"password");
1
DROP TABLE t1;
select 1=_latin1'1';
1=_latin1'1'
1
select _latin1'1'=1;
_latin1'1'=1
1
select _latin2'1'=1;
_latin2'1'=1
1
select 1=_latin2'1';
1=_latin2'1'
1
select _latin1'1'=_latin2'1';
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation '='
select row('a','b','c') = row('a','b','c');
row('a','b','c') = row('a','b','c')
1
select row('A','b','c') = row('a','b','c');
row('A','b','c') = row('a','b','c')
1
select row('A' COLLATE latin1_bin,'b','c') = row('a','b','c');
row('A' COLLATE latin1_bin,'b','c') = row('a','b','c')
0
select row('A','b','c') = row('a' COLLATE latin1_bin,'b','c');
row('A','b','c') = row('a' COLLATE latin1_bin,'b','c')
0
select row('A' COLLATE latin1_general_ci,'b','c') = row('a' COLLATE latin1_bin,'b','c');
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation '='
select concat(_latin1'a',_latin2'a');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'concat'
select concat(_latin1'a',_latin2'a',_latin5'a');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin5_turkish_ci,COERCIBLE) for operation 'concat'
select concat(_latin1'a',_latin2'a',_latin5'a',_latin7'a');
ERROR HY000: Illegal mix of collations for operation 'concat'
select FIELD('b','A','B');
FIELD('b','A','B')
2
select FIELD('B','A','B');
FIELD('B','A','B')
2
select FIELD('b' COLLATE latin1_bin,'A','B');
FIELD('b' COLLATE latin1_bin,'A','B')
0
select FIELD('b','A' COLLATE latin1_bin,'B');
FIELD('b','A' COLLATE latin1_bin,'B')
0
select FIELD(_latin2'b','A','B');
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'field'
select FIELD('b',_latin2'A','B');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'field'
select FIELD('b',_latin2'A','B',1);
FIELD('b',_latin2'A','B',1)
1
select POSITION(_latin1'B' IN _latin1'abcd');
POSITION(_latin1'B' IN _latin1'abcd')
2
select POSITION(_latin1'B' IN _latin1'abcd' COLLATE latin1_bin);
POSITION(_latin1'B' IN _latin1'abcd' COLLATE latin1_bin)
0
select POSITION(_latin1'B' COLLATE latin1_bin IN _latin1'abcd');
POSITION(_latin1'B' COLLATE latin1_bin IN _latin1'abcd')
0
select POSITION(_latin1'B' COLLATE latin1_general_ci IN _latin1'abcd' COLLATE latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_bin,EXPLICIT) and (latin1_general_ci,EXPLICIT) for operation 'locate'
select POSITION(_latin1'B' IN _latin2'abcd');
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE) and (latin1_swedish_ci,COERCIBLE) for operation 'locate'
select FIND_IN_SET(_latin1'B',_latin1'a,b,c,d');
FIND_IN_SET(_latin1'B',_latin1'a,b,c,d')
2
select FIND_IN_SET(_latin1'B' COLLATE latin1_general_ci,_latin1'a,b,c,d' COLLATE latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'find_in_set'
select FIND_IN_SET(_latin1'B',_latin2'a,b,c,d');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'find_in_set'
select SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin1'd',2);
SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin1'd',2)
abcdabc
select SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin2'd',2);
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'substr_index'
select SUBSTRING_INDEX(_latin1'abcdabcdabcd' COLLATE latin1_general_ci,_latin1'd' COLLATE latin1_bin,2);
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'substr_index'
select _latin1'B' between _latin1'a' and _latin1'c';
_latin1'B' between _latin1'a' and _latin1'c'
1
select _latin1'B' collate latin1_bin between _latin1'a' and _latin1'c';
_latin1'B' collate latin1_bin between _latin1'a' and _latin1'c'
0
select _latin1'B' between _latin1'a' collate latin1_bin and _latin1'c';
_latin1'B' between _latin1'a' collate latin1_bin and _latin1'c'
0
select _latin1'B' between _latin1'a' and _latin1'c' collate latin1_bin;
_latin1'B' between _latin1'a' and _latin1'c' collate latin1_bin
0
select _latin2'B' between _latin1'a' and _latin1'b';
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'between'
select _latin1'B' between _latin2'a' and _latin1'b';
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'between'
select _latin1'B' between _latin1'a' and _latin2'b';
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE) for operation 'between'
select _latin1'B' collate latin1_general_ci between _latin1'a' collate latin1_bin and _latin1'b';
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_bin,EXPLICIT), (latin1_swedish_ci,COERCIBLE) for operation 'between'
select _latin1'B' in (_latin1'a',_latin1'b');
_latin1'B' in (_latin1'a',_latin1'b')
1
select _latin1'B' collate latin1_bin in (_latin1'a',_latin1'b');
_latin1'B' collate latin1_bin in (_latin1'a',_latin1'b')
0
select _latin1'B' in (_latin1'a' collate latin1_bin,_latin1'b');
_latin1'B' in (_latin1'a' collate latin1_bin,_latin1'b')
0
select _latin1'B' in (_latin1'a',_latin1'b' collate latin1_bin);
_latin1'B' in (_latin1'a',_latin1'b' collate latin1_bin)
0
select _latin2'B' in (_latin1'a',_latin1'b');
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
select _latin1'B' in (_latin2'a',_latin1'b');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
select _latin1'B' in (_latin1'a',_latin2'b');
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE) for operation ' IN '
select _latin1'B' COLLATE latin1_general_ci in (_latin1'a' COLLATE latin1_bin,_latin1'b');
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_bin,EXPLICIT), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
select _latin1'B' COLLATE latin1_general_ci in (_latin1'a',_latin1'b' COLLATE latin1_bin);
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_swedish_ci,COERCIBLE), (latin1_bin,EXPLICIT) for operation ' IN '
select collation(bin(130)), coercibility(bin(130));
collation(bin(130))	coercibility(bin(130))
latin1_swedish_ci	3
select collation(oct(130)), coercibility(oct(130));
collation(oct(130))	coercibility(oct(130))
latin1_swedish_ci	3
select collation(conv(130,16,10)), coercibility(conv(130,16,10));
collation(conv(130,16,10))	coercibility(conv(130,16,10))
latin1_swedish_ci	3
select collation(hex(130)), coercibility(hex(130));
collation(hex(130))	coercibility(hex(130))
latin1_swedish_ci	3
select collation(char(130)), coercibility(hex(130));
collation(char(130))	coercibility(hex(130))
binary	3
select collation(format(130,10)), coercibility(format(130,10));
collation(format(130,10))	coercibility(format(130,10))
latin1_swedish_ci	3
select collation(lcase(_latin2'a')), coercibility(lcase(_latin2'a'));
collation(lcase(_latin2'a'))	coercibility(lcase(_latin2'a'))
latin2_general_ci	3
select collation(ucase(_latin2'a')), coercibility(ucase(_latin2'a'));
collation(ucase(_latin2'a'))	coercibility(ucase(_latin2'a'))
latin2_general_ci	3
select collation(left(_latin2'a',1)), coercibility(left(_latin2'a',1));
collation(left(_latin2'a',1))	coercibility(left(_latin2'a',1))
latin2_general_ci	3
select collation(right(_latin2'a',1)), coercibility(right(_latin2'a',1));
collation(right(_latin2'a',1))	coercibility(right(_latin2'a',1))
latin2_general_ci	3
select collation(substring(_latin2'a',1,1)), coercibility(substring(_latin2'a',1,1));
collation(substring(_latin2'a',1,1))	coercibility(substring(_latin2'a',1,1))
latin2_general_ci	3
select collation(concat(_latin2'a',_latin2'b')), coercibility(concat(_latin2'a',_latin2'b'));
collation(concat(_latin2'a',_latin2'b'))	coercibility(concat(_latin2'a',_latin2'b'))
latin2_general_ci	3
select collation(lpad(_latin2'a',4,_latin2'b')), coercibility(lpad(_latin2'a',4,_latin2'b'));
collation(lpad(_latin2'a',4,_latin2'b'))	coercibility(lpad(_latin2'a',4,_latin2'b'))
binary	3
select collation(rpad(_latin2'a',4,_latin2'b')), coercibility(rpad(_latin2'a',4,_latin2'b'));
collation(rpad(_latin2'a',4,_latin2'b'))	coercibility(rpad(_latin2'a',4,_latin2'b'))
latin2_general_ci	3
select collation(concat_ws(_latin2'a',_latin2'b')), coercibility(concat_ws(_latin2'a',_latin2'b'));
collation(concat_ws(_latin2'a',_latin2'b'))	coercibility(concat_ws(_latin2'a',_latin2'b'))
latin2_general_ci	3
select collation(make_set(255,_latin2'a',_latin2'b',_latin2'c')), coercibility(make_set(255,_latin2'a',_latin2'b',_latin2'c'));
collation(make_set(255,_latin2'a',_latin2'b',_latin2'c'))	coercibility(make_set(255,_latin2'a',_latin2'b',_latin2'c'))
latin2_general_ci	3
select collation(export_set(255,_latin2'y',_latin2'n',_latin2' ')), coercibility(export_set(255,_latin2'y',_latin2'n',_latin2' '));
collation(export_set(255,_latin2'y',_latin2'n',_latin2' '))	coercibility(export_set(255,_latin2'y',_latin2'n',_latin2' '))
binary	3
select collation(trim(_latin2' a ')), coercibility(trim(_latin2' a '));
collation(trim(_latin2' a '))	coercibility(trim(_latin2' a '))
latin2_general_ci	3
select collation(ltrim(_latin2' a ')), coercibility(ltrim(_latin2' a '));
collation(ltrim(_latin2' a '))	coercibility(ltrim(_latin2' a '))
latin2_general_ci	3
select collation(rtrim(_latin2' a ')), coercibility(rtrim(_latin2' a '));
collation(rtrim(_latin2' a '))	coercibility(rtrim(_latin2' a '))
latin2_general_ci	3
select collation(trim(LEADING _latin2' ' FROM _latin2'a')), coercibility(trim(LEADING _latin2'a' FROM _latin2'a'));
collation(trim(LEADING _latin2' ' FROM _latin2'a'))	coercibility(trim(LEADING _latin2'a' FROM _latin2'a'))
latin2_general_ci	3
select collation(trim(TRAILING _latin2' ' FROM _latin2'a')), coercibility(trim(TRAILING _latin2'a' FROM _latin2'a'));
collation(trim(TRAILING _latin2' ' FROM _latin2'a'))	coercibility(trim(TRAILING _latin2'a' FROM _latin2'a'))
latin2_general_ci	3
select collation(trim(BOTH _latin2' ' FROM _latin2'a')), coercibility(trim(BOTH _latin2'a' FROM _latin2'a'));
collation(trim(BOTH _latin2' ' FROM _latin2'a'))	coercibility(trim(BOTH _latin2'a' FROM _latin2'a'))
latin2_general_ci	3
select collation(repeat(_latin2'a',10)), coercibility(repeat(_latin2'a',10));
collation(repeat(_latin2'a',10))	coercibility(repeat(_latin2'a',10))
latin2_general_ci	3
select collation(reverse(_latin2'ab')), coercibility(reverse(_latin2'ab'));
collation(reverse(_latin2'ab'))	coercibility(reverse(_latin2'ab'))
latin2_general_ci	3
select collation(quote(_latin2'ab')), coercibility(quote(_latin2'ab'));
collation(quote(_latin2'ab'))	coercibility(quote(_latin2'ab'))
latin2_general_ci	3
select collation(soundex(_latin2'ab')), coercibility(soundex(_latin2'ab'));
collation(soundex(_latin2'ab'))	coercibility(soundex(_latin2'ab'))
latin2_general_ci	3
select collation(substring(_latin2'ab',1)), coercibility(substring(_latin2'ab',1));
collation(substring(_latin2'ab',1))	coercibility(substring(_latin2'ab',1))
latin2_general_ci	3
select collation(insert(_latin2'abcd',2,3,_latin2'ef')), coercibility(insert(_latin2'abcd',2,3,_latin2'ef'));
collation(insert(_latin2'abcd',2,3,_latin2'ef'))	coercibility(insert(_latin2'abcd',2,3,_latin2'ef'))
latin2_general_ci	3
select collation(replace(_latin2'abcd',_latin2'b',_latin2'B')), coercibility(replace(_latin2'abcd',_latin2'b',_latin2'B'));
collation(replace(_latin2'abcd',_latin2'b',_latin2'B'))	coercibility(replace(_latin2'abcd',_latin2'b',_latin2'B'))
latin2_general_ci	3
create table t1 
select
bin(130),
oct(130),
conv(130,16,10),
hex(130),
char(130),
format(130,10),
left(_latin2'a',1),
right(_latin2'a',1), 
lcase(_latin2'a'), 
ucase(_latin2'a'),
substring(_latin2'a',1,1),
concat(_latin2'a',_latin2'b'),
lpad(_latin2'a',4,_latin2'b'),
rpad(_latin2'a',4,_latin2'b'),
concat_ws(_latin2'a',_latin2'b'),
make_set(255,_latin2'a',_latin2'b',_latin2'c'),
export_set(255,_latin2'y',_latin2'n',_latin2' '),
trim(_latin2' a '),
ltrim(_latin2' a '),
rtrim(_latin2' a '),
trim(LEADING _latin2' ' FROM _latin2' a '),
trim(TRAILING _latin2' ' FROM _latin2' a '),
trim(BOTH _latin2' ' FROM _latin2' a '),
repeat(_latin2'a',10),
reverse(_latin2'ab'),
quote(_latin2'ab'),
soundex(_latin2'ab'),
substring(_latin2'ab',1),
insert(_latin2'abcd',2,3,_latin2'ef'),
replace(_latin2'abcd',_latin2'b',_latin2'B')
;
Warnings:
Warning	1263	Data truncated for column 'format(130,10)' at row 1
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `bin(130)` char(64) NOT NULL default '',
  `oct(130)` char(64) NOT NULL default '',
  `conv(130,16,10)` char(64) NOT NULL default '',
  `hex(130)` char(6) NOT NULL default '',
  `char(130)` char(1) NOT NULL default '',
  `format(130,10)` char(4) NOT NULL default '',
  `left(_latin2'a',1)` char(1) character set latin2 NOT NULL default '',
  `right(_latin2'a',1)` char(1) character set latin2 NOT NULL default '',
  `lcase(_latin2'a')` char(1) character set latin2 NOT NULL default '',
  `ucase(_latin2'a')` char(1) character set latin2 NOT NULL default '',
  `substring(_latin2'a',1,1)` char(1) character set latin2 NOT NULL default '',
  `concat(_latin2'a',_latin2'b')` char(2) character set latin2 NOT NULL default '',
  `lpad(_latin2'a',4,_latin2'b')` char(4) character set latin2 NOT NULL default '',
  `rpad(_latin2'a',4,_latin2'b')` char(4) character set latin2 NOT NULL default '',
  `concat_ws(_latin2'a',_latin2'b')` char(1) character set latin2 NOT NULL default '',
  `make_set(255,_latin2'a',_latin2'b',_latin2'c')` char(5) character set latin2 NOT NULL default '',
  `export_set(255,_latin2'y',_latin2'n',_latin2' ')` char(127) character set latin2 NOT NULL default '',
  `trim(_latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `ltrim(_latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `rtrim(_latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `trim(LEADING _latin2' ' FROM _latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `trim(TRAILING _latin2' ' FROM _latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `trim(BOTH _latin2' ' FROM _latin2' a ')` char(3) character set latin2 NOT NULL default '',
  `repeat(_latin2'a',10)` char(10) character set latin2 NOT NULL default '',
  `reverse(_latin2'ab')` char(2) character set latin2 NOT NULL default '',
  `quote(_latin2'ab')` char(6) character set latin2 NOT NULL default '',
  `soundex(_latin2'ab')` char(4) character set latin2 NOT NULL default '',
  `substring(_latin2'ab',1)` char(2) character set latin2 NOT NULL default '',
  `insert(_latin2'abcd',2,3,_latin2'ef')` char(6) character set latin2 NOT NULL default '',
  `replace(_latin2'abcd',_latin2'b',_latin2'B')` char(4) character set latin2 NOT NULL default ''
) TYPE=MyISAM CHARSET=latin1
drop table t1;
select SUBSTR('abcdefg',3,2);
SUBSTR('abcdefg',3,2)
cd
select SUBSTRING('abcdefg',3,2);
SUBSTRING('abcdefg',3,2)
cd
select SUBSTR('abcdefg',-3,2) FROM DUAL;
SUBSTR('abcdefg',-3,2)
ef
select SUBSTR('abcdefg',-1,5) FROM DUAL;
SUBSTR('abcdefg',-1,5)
g
select SUBSTR('abcdefg',0,0) FROM DUAL;
SUBSTR('abcdefg',0,0)

select SUBSTR('abcdefg',-1,-1) FROM DUAL;
SUBSTR('abcdefg',-1,-1)

select SUBSTR('abcdefg',1,-1) FROM DUAL;
SUBSTR('abcdefg',1,-1)