MySQL中BETWEEN子句的用法详解

可以使用in子句来代替相结合的“大于等于和小于等于”的条件。

要了解between 子句考虑的employee_tbl表有以下记录：

mysql> select * from employee_tbl;
+------+------+------------+--------------------+
| id  | name | work_date | daily_typing_pages |
+------+------+------------+--------------------+
|  1 | john | 2007-01-24 |        250 |
|  2 | ram | 2007-05-27 |        220 |
|  3 | jack | 2007-05-06 |        170 |
|  3 | jack | 2007-04-06 |        100 |
|  4 | jill | 2007-04-06 |        220 |
|  5 | zara | 2007-06-06 |        300 |
|  5 | zara | 2007-02-06 |        350 |
+------+------+------------+--------------------+
7 rows in set (0.00 sec)

现在，假设根据上表想获取记录条件daily_typing_pages超过170，等于和小于300。这可以使用如下条件>=和<=

mysql>select * from employee_tbl 
  ->where daily_typing_pages >= 170 and
  ->daily_typing_pages <= 300;
+------+------+------------+--------------------+
| id  | name | work_date | daily_typing_pages |
+------+------+------------+--------------------+
|  1 | john | 2007-01-24 |        250 |
|  2 | ram | 2007-05-27 |        220 |
|  3 | jack | 2007-05-06 |        170 |
|  4 | jill | 2007-04-06 |        220 |
|  5 | zara | 2007-06-06 |        300 |
+------+------+------------+--------------------+
5 rows in set (0.03 sec)

同样可以实现使用between子句如下：

mysql> select * from employee_tbl 
  -> where daily_typing_pages between 170 and 300; 
+------+------+------------+--------------------+
| id  | name | work_date | daily_typing_pages |
+------+------+------------+--------------------+
|  1 | john | 2007-01-24 |        250 |
|  2 | ram | 2007-05-27 |        220 |
|  3 | jack | 2007-05-06 |        170 |
|  4 | jill | 2007-04-06 |        220 |
|  5 | zara | 2007-06-06 |        300 |
+------+------+------------+--------------------+
5 rows in set (0.03 sec)