select id, user_id, customer_code, major_code, state, ranking, create_time from sy_test_select_major SELECT DISTINCT sm.`customer_code`, mm.code `major_code`, mm.name `major_name`, mc.code `major_category_code`, mc.name `major_category_name` FROM `sy_test_select_major` sm JOIN `sy_major` mm ON sm.`major_code` = mm.`code` JOIN `sy_major` mc ON mm.`parent_code` = mc.`code` JOIN `sy_major` ms ON mc.`parent_code` = ms.`code` WHERE sm.`customer_code` IN #{o} AND sm.`state` = 1 and user_id = #{userId} and customer_code = #{customerCode} and major_code = #{majorCode} and state = #{state} and ranking = #{ranking} where id = #{id} insert into sy_test_select_major user_id, customer_code, major_code, state, ranking, create_time, #{userId}, #{customerCode}, #{majorCode}, #{state}, #{ranking}, #{createTime}, update sy_test_select_major user_id = #{userId}, customer_code = #{customerCode}, major_code = #{majorCode}, state = #{state}, ranking = #{ranking}, create_time = #{createTime}, where id = #{id} delete from sy_test_select_major where id = #{id} delete from sy_test_select_major where id in #{id}