/

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)