IN 查询

Posted 2020-09-19

IN 查询 ：SELECT  字段名1, 字段名2, ...... , 字段名n  FROM  表名  WHERE  查询条件  IN  (范围) ;

mysql> SELECT s_id, f_name, f_price FROM fruits WHERE s_id IN (101,102);
+------+------------+---------+
| s_id | f_name     | f_price |    # 查询s_id为101和102的记录
+------+------------+---------+
|  101 | apple      |    5.20 |
|  101 | blackberry |   10.20 |
|  102 | orange     |   11.20 |
|  101 | cherry     |    3.20 |
|  102 | banana     |   10.30 |
|  102 | grape      |    5.30 |
+------+------------+---------+

mysql> SELECT s_id, f_name, f_price FROM fruits WHERE s_id NOT IN (101,102);
+------+---------+---------+
| s_id | f_name  | f_price |       # 与IN相反，用来查询不在条件范围内的记录
+------+---------+---------+
|  103 | apricot |    2.20 |
|  104 | berry   |    7.60 |
|  107 | xxxx    |    3.60 |
|  105 | melon   |    8.20 |
|  104 | lemon   |    6.40 |
|  106 | mango   |   15.70 |
|  105 | xbabay  |    2.60 |
|  105 | xxtt    |   11.60 |
|  103 | coconut |    9.20 |
|  107 | xbababa |    3.60 |
+------+---------+---------+