SELECT * FROM music_group_subject_plan WHERE id_ = #{id} SELECT * FROM music_group_subject_plan ORDER BY id_ INSERT INTO music_group_subject_plan (id_,music_group_id_,subject_id_,expected_student_num_,apply_student_num_,fee_,kit_group_purchase_type_,deposit_fee_,create_time_,update_time_) VALUES(#{id},#{musicGroupId},#{subjectId},#{expectedStudentNum},#{applyStudentNum},#{fee},#{kitGroupPurchaseType,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler},#{depositFee},#{createTime},#{updateTime}) UPDATE music_group_subject_plan subject_id_ = #{subjectId}, apply_student_num_ = #{applyStudentNum}, fee_ = #{fee}, kit_group_purchase_type_ = #{kitGroupPurchaseType,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}, update_time_ = #{updateTime}, deposit_fee_ = #{depositFee}, expected_student_num_ = #{expectedStudentNum}, music_group_id_ = #{musicGroupId}, WHERE id_ = #{id} DELETE FROM music_group_subject_plan WHERE id_ = #{id} SELECT * FROM music_group_subject_plan ORDER BY id_ SELECT COUNT(*) FROM music_group_subject_plan SELECT mgsp.id_ plan_id_,mgsp.expected_student_num_,s.name_ sub_name_,s.id_ sub_id_ FROM music_group_subject_plan mgsp LEFT JOIN `subject` s ON mgsp.subject_id_ = s.id_ WHERE mgsp.music_group_id_ = #{musicGroupId}