56,677
社区成员
发帖
与我相关
我的任务
分享
mysql> create table ss
-> (
-> no int check(no <= 4 and no >=
-> );
Query OK, 0 rows affected (0.11 sec)
mysql> insert into ss values(1);
Query OK, 1 row affected (0.01 sec)
mysql> select * from ss;
+------+
| no |
+------+
| 1 |
+------+
1 row in set (0.00 sec)
mysql> insert into ss values(5);
Query OK, 1 row affected (0.03 sec)
mysql> select * from ss;
+------+
| no |
+------+
| 1 |
| 5 |
+------+
2 rows in set (0.00 sec)