ndb_charset.result
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:4k
- drop table if exists t1;
- create table t1 (
- a char(3) character set latin1 collate latin1_bin primary key
- ) engine=ndb;
- insert into t1 values('aAa');
- insert into t1 values('aaa');
- insert into t1 values('AAA');
- select * from t1 order by a;
- a
- AAA
- aAa
- aaa
- select * from t1 where a = 'aAa';
- a
- aAa
- select * from t1 where a = 'aaa';
- a
- aaa
- select * from t1 where a = 'AaA';
- a
- select * from t1 where a = 'AAA';
- a
- AAA
- drop table t1;
- create table t1 (
- a char(3) character set latin1 collate latin1_swedish_ci primary key
- ) engine=ndb;
- insert into t1 values('aAa');
- insert into t1 values('aaa');
- ERROR 23000: Duplicate entry 'aaa' for key 1
- insert into t1 values('AAA');
- ERROR 23000: Duplicate entry 'AAA' for key 1
- select * from t1 order by a;
- a
- aAa
- select * from t1 where a = 'aAa';
- a
- aAa
- select * from t1 where a = 'aaa';
- a
- aAa
- select * from t1 where a = 'AaA';
- a
- aAa
- select * from t1 where a = 'AAA';
- a
- aAa
- drop table t1;
- create table t1 (
- p int primary key,
- a char(3) character set latin1 collate latin1_bin not null,
- unique key(a)
- ) engine=ndb;
- insert into t1 values(1, 'aAa');
- insert into t1 values(2, 'aaa');
- insert into t1 values(3, 'AAA');
- select * from t1 order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- select * from t1 where a = 'aAa';
- p a
- 1 aAa
- select * from t1 where a = 'aaa';
- p a
- 2 aaa
- select * from t1 where a = 'AaA';
- p a
- select * from t1 where a = 'AAA';
- p a
- 3 AAA
- drop table t1;
- create table t1 (
- p int primary key,
- a char(3) character set latin1 collate latin1_swedish_ci not null,
- unique key(a)
- ) engine=ndb;
- insert into t1 values(1, 'aAa');
- insert into t1 values(2, 'aaa');
- ERROR 23000: Duplicate entry '2' for key 1
- insert into t1 values(3, 'AAA');
- ERROR 23000: Duplicate entry '3' for key 1
- select * from t1 order by p;
- p a
- 1 aAa
- select * from t1 where a = 'aAa';
- p a
- 1 aAa
- select * from t1 where a = 'aaa';
- p a
- 1 aAa
- select * from t1 where a = 'AaA';
- p a
- 1 aAa
- select * from t1 where a = 'AAA';
- p a
- 1 aAa
- drop table t1;
- create table t1 (
- p int primary key,
- a char(3) character set latin1 collate latin1_bin not null,
- index(a)
- ) engine=ndb;
- insert into t1 values(1, 'aAa');
- insert into t1 values(2, 'aaa');
- insert into t1 values(3, 'AAA');
- insert into t1 values(4, 'aAa');
- insert into t1 values(5, 'aaa');
- insert into t1 values(6, 'AAA');
- select * from t1 order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- explain select * from t1 where a = 'zZz' order by p;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 ref a a 3 const 10 Using where; Using filesort
- select * from t1 where a = 'aAa' order by p;
- p a
- 1 aAa
- 4 aAa
- select * from t1 where a = 'aaa' order by p;
- p a
- 2 aaa
- 5 aaa
- select * from t1 where a = 'AaA' order by p;
- p a
- select * from t1 where a = 'AAA' order by p;
- p a
- 3 AAA
- 6 AAA
- drop table t1;
- create table t1 (
- p int primary key,
- a char(3) character set latin1 collate latin1_swedish_ci not null,
- index(a)
- ) engine=ndb;
- insert into t1 values(1, 'aAa');
- insert into t1 values(2, 'aaa');
- insert into t1 values(3, 'AAA');
- insert into t1 values(4, 'aAa');
- insert into t1 values(5, 'aaa');
- insert into t1 values(6, 'AAA');
- select * from t1 order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- explain select * from t1 where a = 'zZz' order by p;
- id select_type table type possible_keys key key_len ref rows Extra
- 1 SIMPLE t1 ref a a 3 const 10 Using where; Using filesort
- select * from t1 where a = 'aAa' order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- select * from t1 where a = 'aaa' order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- select * from t1 where a = 'AaA' order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- select * from t1 where a = 'AAA' order by p;
- p a
- 1 aAa
- 2 aaa
- 3 AAA
- 4 aAa
- 5 aaa
- 6 AAA
- drop table t1;
- create table t1 (
- a char(10) primary key
- ) engine=ndbcluster default charset=latin1;
- insert into t1 values ('aaabb');
- select * from t1;
- a
- aaabb
- replace into t1 set a = 'AAABB';
- select * from t1;
- a
- AAABB
- replace into t1 set a = 'aAaBb';
- select * from t1;
- a
- aAaBb
- replace into t1 set a = 'aaabb';
- select * from t1;
- a
- aaabb
- drop table t1;