mybatis批量删除sql语句
时间: 2023-11-07 17:55:35 浏览: 182
MySQL中批量删除指定前缀表的sql语句
在MyBatis中,可以使用foreach标签来实现批量删除操作。具体的步骤如下:
1. 在Mapper文件中,编写删除语句,使用foreach标签包裹要删除的数据集合。例如:
```
<delete id="deleteByIds" parameterType="java.util.List">
DELETE FROM table_name WHERE id IN
<foreach collection="list" item="item" index="index" open="(" close=")" separator=",">
#{item}
</foreach>
</delete>
```
2. 在Java代码中,调用Mapper接口的对应方法来执行删除操作。例如:
```
List<Integer> ids = Arrays.asList(1, 2, 3);
mapper.deleteByIds(ids);
```
通过以上步骤,就可以实现MyBatis中的批量删除操作了。在删除语句中,使用foreach标签来循环遍历要删除的数据集合,并将其拼接到SQL语句中的IN条件中。这样就可以同时删除多条数据了。 [2 [3<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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