ctype_cp1251.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
源码类别:
MySQL数据库
开发平台:
Visual C++
- drop table if exists t1;
- SET NAMES cp1251;
- create table t1 (a varchar(10) not null) character set cp1251;
- insert into t1 values ("a"),("ab"),("abc");
- select * from t1;
- a
- a
- ab
- abc
- select a, left(a,1) as b from t1;
- a b
- a a
- ab a
- abc a
- select a, left(a,1) as b from t1 group by a;
- a b
- a a
- ab a
- abc a
- SELECT DISTINCT RIGHT(a,1) from t1;
- RIGHT(a,1)
- a
- b
- c
- drop table t1;
- create table t1 (a char(15) binary, b binary(15)) character set cp1251;
- insert into t1 values ('aaa','bbb'),('AAA','BBB');
- select upper(a),upper(b) from t1;
- upper(a) upper(b)
- AAA bbb
- AAA BBB
- select lower(a),lower(b) from t1;
- lower(a) lower(b)
- aaa bbb
- aaa BBB
- select * from t1 where upper(a)='AAA';
- a b
- aaa bbb
- AAA BBB
- select * from t1 where lower(a)='aaa';
- a b
- aaa bbb
- AAA BBB
- select * from t1 where upper(b)='BBB';
- a b
- AAA BBB
- select * from t1 where lower(b)='bbb';
- a b
- aaa bbb
- select charset(a), charset(b), charset(binary 'ccc') from t1 limit 1;
- charset(a) charset(b) charset(binary 'ccc')
- cp1251 binary binary
- select collation(a), collation(b), collation(binary 'ccc') from t1 limit 1;
- collation(a) collation(b) collation(binary 'ccc')
- cp1251_bin binary binary
- drop table t1;
- create table t1 (
- a varchar(16) character set cp1251 collate cp1251_bin not null,
- b int(10) default null,
- primary key(a)
- ) charset=cp1251;
- insert into t1 (a) values ('air'),
- ('we'),('g'),('we_toshko'), ('s0urce'),('we_ivo'),('we_iliyan'),
- ('we_martin'),('vw_grado'),('vw_vasko'),('tn_vili'),('tn_kalina'),
- ('tn_fakira'),('vw_silvia'),('vw_starshi'),('vw_geo'),('vw_b0x1');
- select * from t1 where a like 'we_%';
- a b
- we_iliyan NULL
- we_ivo NULL
- we_martin NULL
- we_toshko NULL
- drop table t1;