MySQL批量插入、批量更新及批量删除语句

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1、批量插入

1. <insert
2. id="insertBatch"
3. parameterType="java.util.List">
4. insert into
5. t_student(name, age, class)
6. values
7. <foreach collection="list" item="item" index="index" separator=",">
8. (
9. #{item.name,jdbcType=VARCHAR},
10. #{item.age,jdbcType=INTEGER},
11. #{item.class,jdbcType=LONGVARCHAR}
12. )
13. </foreach>
14. </insert>

2、批量更新

方式一：

1. <update id="updateBatch">
2. <foreach collection="list" separator=";" item="stud">
3. update t_studetn set
4. name = #{stud.name},
5. age = #{stud.age},
6. class = #{stud.sex},
7. where id = #{stud.id}
8. </foreach>
9. </update>

方式二：

1. <update id="updateBatch" parameterType="list">
2. UPDATE t_student
3. SET name = CASE id
4. <foreach collection="list" item="i" index="index">
5. WHEN #{i.id}
6. THEN #{i.name}
7. </foreach>
8. END,
9. age = CASE id
10. <foreach collection="list" item="i" index="index">
11. WHEN #{i.id} THEN #{i.age}
12. </foreach>
13. END
14. WHERE id IN
15. <foreach collection="list" separator="or" item="i" index="index" >
16. id=#{i.id}
17. </foreach>
18. </update>

3、批量删除

1. <delete id="deleteBatchByParams">
2. delete from
3. t_student
4. where
5. id IN
6. <foreach collection="ids" item="item" index="index" open="("close=")"separator=",">
7. #{item}
8. </foreach>
9. </delete>

https://blog.csdn.net/u014252478/article/details/91386289

MySQL批量插入、批量更新及批量删除语句

标签：等于   ram   reg   语句   序号   color   reac   map   word   

原文地址：https://www.cnblogs.com/niudaxianren/p/13158978.html