SV_SCHOOLGRADESUBJECT SCHOOL_ID, GRADE_ID, SUBJECT_ID, SCHOOLGRADESUBJECT_ID #{SCHOOL_ID}, #{GRADE_ID}, #{SUBJECT_ID}, #{SCHOOLGRADESUBJECT_ID} insert into ( ) values ( ) delete from where SCHOOLGRADESUBJECT_ID = #{SCHOOLGRADESUBJECT_ID} update set SCHOOL_ID = #{SCHOOL_ID}, GRADE_ID = #{GRADE_ID}, SUBJECT_ID = #{SUBJECT_ID}, SCHOOLGRADESUBJECT_ID = SCHOOLGRADESUBJECT_ID where SCHOOLGRADESUBJECT_ID = #{SCHOOLGRADESUBJECT_ID} select from where SCHOOLGRADESUBJECT_ID = #{SCHOOLGRADESUBJECT_ID} select from where 1=1 and ( ) select from delete from where SCHOOLGRADESUBJECT_ID in #{item}