>=

运算符说明

>= 运算符用于比较运算。当 >= 左边运算数值大于或等于 >= 右侧运算数值时，>= 运算符返回结果为 true。

语法结构

1. > SELECT x >= y;

示例

1. mysql> SELECT 2 >= 2;
2. +--------+
3. | 2 >= 2 |
4. +--------+
5. | true   |
6. +--------+
7. 1 row in set (0.01 sec)

1. create table t1 (spID smallint,userID bigint,score int);
2. insert into t1 values (1,1,1);
3. insert into t1 values (2,2,2);
4. insert into t1 values (2,1,4);
5. insert into t1 values (3,3,3);
6. insert into t1 values (1,1,5);
7. insert into t1 values (4,6,10);
8. insert into t1 values (5,11,99);

10. mysql> select userID,spID,score from t1 where spID>=userID*score;
11. +--------+------+-------+
12. | userid | spid | score |
13. +--------+------+-------+
14. |      1 |    1 |     1 |
15. +--------+------+-------+
16. 1 row in set (0.01 sec)