总是会突然忘记，怎么批量插入，批量更新，这些sql

<update id="addPoolCpn" parameterType="java.util.List">
   <foreach collection="list" item="item" index="index" open=""
      close="" separator=";">
      UPDATE xxx.cpn_pool
      <set>
         cpnKey = #{item.cpnKey},
         pincodeProductKey =
         #{item.pincodeProductKey},
         pincodeCpnKey = #{item.pincodeCpnKey},
         `updatedAt` = now(),
         version = version+1
      </set>
      WHERE `key` = #{item.key}
   </foreach>
</update>