/

运算符说明

/ 运算符用于除法运算。

语法结构

1. > SELECT value1/value2;

1. > SELECT column1/column2... FROM table_name;

除法运算不可以除以 O。

示例

1. mysql> select 1123.2333/1233.3331;
2. +-----------------------+
3. | 1123.2333 / 1233.3331 |
4. +-----------------------+
5. |    0.9107298750029493 |
6. +-----------------------+
7. 1 row in set (0.00 sec)

1. create table t2(c1 int, c2 int);
2. insert into t2 values (-3, 2);
3. insert into t2 values (1, 2);

5. mysql> select c1/2 from t2;
6. +--------+
7. | c1 / 2 |
8. +--------+
9. |   -1.5 |
10. |    0.5 |
11. +--------+
12. 2 rows in set (0.00 sec)

14. mysql> select c1/c2 from t2;
15. +---------+
16. | c1 / c2 |
17. +---------+
18. |    -1.5 |
19. |     0.5 |
20. +---------+
21. 2 rows in set (0.01 sec)