使用MySQL DELETE查询删除选择性的多个记录
对于选择性的多个记录,请使用MySQL IN()
。要删除它们,请使用MySQL DELETE。让我们首先创建一个表-
mysql> create table DemoTable(
ClientId varchar(40),
ClientName varchar(50)
);
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable values('CLI-101','Chris');mysql> insert into DemoTable values('CLI-110','Adam');
mysql> insert into DemoTable values('CLI-220','Mike');
mysql> insert into DemoTable values('CLI-120','Bob');
mysql> insert into DemoTable values('CLI-240','Sam');
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
这将产生以下输出-
+----------+------------+| ClientId | ClientName |
+----------+------------+
| CLI-101 | Chris |
| CLI-110 | Adam |
| CLI-220 | Mike |
| CLI-120 | Bob |
| CLI-240 | Sam |
+----------+------------+
5 rows in set (0.00 sec)
这是删除选择性多个记录的查询-
mysql> delete from DemoTable where ClientId IN('CLI-101','CLI-220','CLI-240');
让我们再次检查表记录-
mysql> select *from DemoTable;
这将产生以下输出-
+----------+------------+| ClientId | ClientName |
+----------+------------+
| CLI-110 | Adam |
| CLI-120 | Bob |
+----------+------------+
2 rows in set (0.00 sec)
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