MySQL中的批量修改、插入操作数据库

UPDATE check_order_pl_detail
SET remarks =
CASE
        id
        WHEN 1 THEN '备注1'
        WHEN 2 THEN '备注2'
    END,
    retail_unit_price =
CASE
        id
        WHEN 1 THEN 100
        WHEN 2 THEN 200
    END
WHERE
    id IN ( 1, 2 )

INSERT INTO user_info_backup ( `name`, age, sex, log_time) 
SELECT
    `name`,
    age,
    sex,
    DATE_SUB( curdate( ), INTERVAL 1 DAY ) AS log_time
FROM
    user_info

<strong>批量新增</strong>
<insert id="insertList">
  insert into sea_user (id, username,`time`)
  values
  <foreach collection="list" item="item" index="index" separator=",">
    (replace(uuid(),"-",""), #{item.username}, #{item.time})
  </foreach>
</insert>

item="item" 　"item" 遍历的集合中的每个对象
---------------------------------------------------------------------------------------------------------
<strong>新增返回主键id （useGeneratedKeys="true" keyProperty="id"）</strong>

<insert id="insert" parameterType="com.mmall.pojo.Shipping" useGeneratedKeys="true" keyProperty="id">
  insert into mmall_shipping (id, user_id, receiver_name, 
    receiver_phone, receiver_mobile, receiver_province, 
    receiver_city, receiver_district, receiver_address, 
    receiver_zip, create_time, update_time
    )
  values (#{id,jdbcType=INTEGER}, #{userId,jdbcType=INTEGER}, #{receiverName,jdbcType=VARCHAR}, 
    #{receiverPhone,jdbcType=VARCHAR}, #{receiverMobile,jdbcType=VARCHAR}, #{receiverProvince,jdbcType=VARCHAR}, 
    #{receiverCity,jdbcType=VARCHAR}, #{receiverDistrict,jdbcType=VARCHAR}, #{receiverAddress,jdbcType=VARCHAR}, 
    #{receiverZip,jdbcType=VARCHAR}, now(), now()
    )
</insert>
---------------------------------------------------------------------------------------------------------
<strong>批量修改
list  - 传过来的数据集合，使用注解
goods_id 表中数据
goodsId 对应的实体类属性
</strong>

<update id="updateBatchStock">
  update
    goods
  set
    goods_stock =
    <foreach collection="list" item="item" index="index" separator=" " open="case goods_id" close="end">
        when #{item.goodsId} then goods_stock - #{item.quantity}
    </foreach>
    ,goods_sales_quantity =
    <foreach collection="list" item="item" index="index" separator=" " open="case goods_id" close="end">
        when #{item.goodsId} then goods_sales_quantity + #{item.quantity}
    </foreach>
    where goods_id in
    <foreach collection="list" index="index" item="item" separator="," open="(" close=")">
        #{item.goodsId}
    </foreach>
</update>