MySQL 查询以从表中排除某些值
mysqlmysqli database更新于 2025/11/15 0:12:17
使用 NOT IN() 从表中排除某些值。
首先我们创建一个表 −
mysql> create table DemoTable791 ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, FirstName varchar(100) ); Query OK, 0 rows affected (0.61 sec)
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable791(FirstName) values('Chris');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable791(FirstName) values('Robert');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable791(FirstName) values('David');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable791(FirstName) values('Mike');
Query OK, 1 row affected (0.11 sec)
mysql> insert into DemoTable791(FirstName) values('Bob');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable791(FirstName) values('Carol');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable791(FirstName) values('Adam');
Query OK, 1 row affected (0.09 sec)
使用 select 语句显示表中的所有记录 −
mysql> select *from DemoTable791;
这将产生以下输出 -
+----+-----------+ | Id | FirstName | +----+-----------+ | 1 | Chris | | 2 | Robert | | 3 | David | | 4 | Mike | | 5 | Bob | | 6 | Carol | | 7 | Adam | +----+-----------+ 7 rows in set (0.00 sec)
以下是使用 MySQL 中的 NOT IN() 从表中排除某些值的查询 −
mysql> select *from DemoTable791 where Id NOT IN(4,5,6);
这将产生以下输出 -
+----+-----------+ | Id | FirstName | +----+-----------+ | 1 | Chris | | 2 | Robert | | 3 | David | | 7 | Adam | +----+-----------+ 4 rows in set (0.00 sec)
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