
复制MySQL> create table test1(id int,入处
name varchar(5),type int,primary key(id)); Query OK, 0 rows affected (0.01 sec) MySQL> create table test2(id int,name varchar(5),type int,primary key(id)); Query OK, 0 rows affected (0.01 sec) MySQL> select * from test1; +-----+------+------+ | id | name | type | +-----+------+------+ | 101 | aaa | 1 | | 102 | bbb | 2 | | 103 | ccc | 3 | +-----+------+------+ 3 rows in set (0.00 sec) MySQL> select * from test2; +-----+------+------+ | id | name | type | +-----+------+------+ | 201 | aaa | 1 | | 202 | bbb | 2 | | 203 | ccc | 3 | | 101 | xxx | 5 | +-----+------+------+ 4 rows in set (0.00 sec) 1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.