select a.item_id, a.item_code, a.title, a.content, a.picture, a.create_time from i_item a a.del_flag='0' and a.item_code = #{itemCode} and a.title = #{title} and a.content = #{content} order by a.create_time desc where a.item_id = #{itemId} insert into i_item item_id, item_code, title, content, picture, create_time, #{itemId}, #{itemCode}, #{title}, #{content}, #{picture}, #{createTime}, update i_item item_code = #{itemCode}, title = #{title}, content = #{content}, picture = #{picture}, create_time = #{createTime}, where item_id = #{itemId} delete from i_item where item_id = #{itemId} delete from i_item where item_id in #{itemId} update i_item set del_flag='1' where item_id = #{itemId} update i_item set del_flag='1' where item_id in #{itemId} TRUNCATE TABLE i_item