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DROP TABLE IF EXISTS t1;
SHOW COLLATION LIKE 'cp1250_czech_cs';
Collation Charset Id Default Compiled Sortlen
cp1250_czech_cs cp1250 34 Yes 2
CREATE TABLE t1 (a char(16)) character set cp1250 collate cp1250_czech_cs;
INSERT INTO t1 VALUES ('');
SELECT a, length(a), a='', a=' ', a=' ' FROM t1;
a length(a) a='' a=' ' a=' '
0 1 1 1
DROP TABLE t1;
CREATE TABLE t1 (
popisek varchar(30) collate cp1250_general_ci NOT NULL default '',
PRIMARY KEY (`popisek`)
);
INSERT INTO t1 VALUES ('2005-01-1');
SELECT * FROM t1 WHERE popisek = '2005-01-1';
popisek
2005-01-1
SELECT * FROM t1 WHERE popisek LIKE '2005-01-1';
popisek
2005-01-1
drop table t1;
set names cp1250;
CREATE TABLE t1
(
id INT AUTO_INCREMENT PRIMARY KEY,
str VARCHAR(32) CHARACTER SET cp1250 COLLATE cp1250_czech_cs NOT NULL default '',
UNIQUE KEY (str)
);
INSERT INTO t1 VALUES (NULL, 'a');
INSERT INTO t1 VALUES (NULL, 'aa');
INSERT INTO t1 VALUES (NULL, 'aaa');
INSERT INTO t1 VALUES (NULL, 'aaaa');
INSERT INTO t1 VALUES (NULL, 'aaaaa');
INSERT INTO t1 VALUES (NULL, 'aaaaaa');
INSERT INTO t1 VALUES (NULL, 'aaaaaaa');
select * from t1 where str like 'aa%';
id str
2 aa
3 aaa
4 aaaa
5 aaaaa
6 aaaaaa
7 aaaaaaa
drop table t1;
set names cp1250;
create table t1 (a varchar(15) collate cp1250_czech_cs NOT NULL, primary key(a));
insert into t1 values("abcdefgh");
insert into t1 values("");
select a from t1 where a like "abcdefgh";
a
abcdefgh
drop table t1;
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