wang7241 commented on issue #7489:
URL: https://github.com/apache/shardingsphere/issues/7489#issuecomment-693490301
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> what's your original sql?
sorry i forget my mapper.xml as follow :
<update id="updateBatchNoAssessCountByStuCwId">
<foreach collection="list" item="item" index="index" open=""
close="" separator=";">
UPDATE oral_cw_classwork_stu SET no_assess_count =
if(ISNULL(no_assess_count),0,no_assess_count) + 1,update_time =
#{item.updateTime}
<where>
<if test="item.teaCwId != null"> AND tea_cw_id
= #{item.teaCwId} </if>
<if test="item.schoolId != null"> AND school_id
= #{item.schoolId} </if>
<if test="item.classId != null"> AND class_id =
#{item.classId} </if>
<if test="item.stuCwId != null"> AND stu_cw_id
= #{item.stuCwId} </if>
<if test="item.cwShowStatus != null"> AND
cw_show_status = #{item.cwShowStatus}</if>
</where>
</foreach>
</update>
my mapper as follow:
void updateBatchNoAssessCountByStuCwId(@Param("list")
List<OralCwClassworkStu> classworkStus);
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