# Version: 3.23.29 # # Description # ----------- # Testing string functions drop table if exists t1; select 'hello',"'hello'",'""hello""','''h''e''l''l''o''',"hel""lo",'hel\'lo'; select 'hello' 'monty'; select length('\n\t\r\b\0\_\%\\'); select concat('monty',' was here ','again'),length('hello'),char(ascii('h')); select locate('he','hello'),locate('he','hello',2),locate('lo','hello',2) ; select instr('hello','he'); select position('ll' in 'hello'),position('a' in 'hello'); select left('hello',2),right('hello',2),substring('hello',2,2),mid('hello',1,5) ; select concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',substring('monty',5,1)) ; select substring_index('www.tcx.se','.',-2),substring_index('www.tcx.se','.',1); select substring_index('www.tcx.se','tcx',1),substring_index('www.tcx.se','tcx',-1); select substring_index('.tcx.se','.',-2),substring_index('.tcx.se','.tcx',-1); select concat(':',ltrim(' left '),':',rtrim(' right '),':'); select concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':'); select concat(':',trim(' m '),':',trim(BOTH FROM ' y '),':',trim('*' FROM '*s*'),':'); select concat(':',trim(BOTH 'ab' FROM 'ababmyabab'),':',trim(BOTH '*' FROM '***sql'),':'); select concat(':',trim(LEADING '.*' FROM '.*my'),':',trim(TRAILING '.*' FROM 'sql.*.*'),':'); select TRIM("foo" FROM "foo"), TRIM("foo" FROM "foook"), TRIM("foo" FROM "okfoo"); select concat_ws(', ','monty','was here','again'); select concat_ws(NULL,'a'),concat_ws(',',NULL,''); select concat_ws(',','',NULL,'a'); SELECT CONCAT('"',CONCAT_WS('";"',repeat('a',60),repeat('b',60),repeat('c',60),repeat('d',100)), '"'); select insert('txs',2,1,'hi'),insert('is ',4,0,'a'),insert('txxxxt',2,4,'es'); select replace('aaaa','a','b'),replace('aaaa','aa','b'),replace('aaaa','a','bb'),replace('aaaa','','b'),replace('bbbb','a','c'); select replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL') ; select soundex(''),soundex('he'),soundex('hello all folks'); select password('test'),length(encrypt('test')),encrypt('test','aa'); select md5('hello'); select repeat('monty',5),concat('*',space(5),'*'); select reverse('abc'),reverse('abcd'); select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12'); select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12'); select rpad(741653838,17,'0'),lpad(741653838,17,'0'); select rpad('abcd',7,'ab'),lpad('abcd',7,'ab'); select rpad('abcd',1,'ab'),lpad('abcd',1,'ab'); select LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'),GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'); 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"); select decode(encode(repeat("a",100000),"monty"),"monty")=repeat("a",100000); select decode(encode("abcdef","monty"),"monty")="abcdef"; # # Wrong usage of functions # select reverse(""); select insert("aa",100,1,"b"),insert("aa",1,3,"b"),left("aa",-1),substring("a",1,2); select elt(2,1),field(NULL,"a","b","c"),reverse(""); select locate("a","b",2),locate("","a",1); select ltrim("a"),rtrim("a"),trim(BOTH "" from "a"),trim(BOTH " " from "a"); select concat("1","2")|0,concat("1",".5")+0.0; select substring_index("www.tcx.se","",3); select length(repeat("a",100000000)),length(repeat("a",1000*64)); select position("0" in "baaa" in (1)),position("0" in "1" in (1,2,3)),position("sql" in ("mysql")); select position(("1" in (1,2,3)) in "01"); 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))); 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))); # # Problem med concat # 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'; select domain from t1 where concat('@', trim(leading '.' from concat('.', domain))) = '@test.de'; drop table t1; # # Test bug in concat_ws # 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,bugstatus,submitter), '"') FROM t1; SELECT CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugstatus,submitter), '"') FROM t1; SELECT CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified,bugstatus,submitter) FROM t1; drop table t1;