SV_KNOWLEDGE NAME, P_ID, RANK, CODE, SUBJECT_ID, REMARK, KNOWLEDGE_ID #{NAME}, #{P_ID}, #{RANK}, #{CODE}, #{SUBJECT_ID}, #{REMARK}, #{KNOWLEDGE_ID} insert into ( ) values ( ) delete from where KNOWLEDGE_ID = #{KNOWLEDGE_ID} update set NAME = #{NAME}, P_ID = #{P_ID}, RANK = #{RANK}, CODE = #{CODE}, REMARK = #{REMARK}, KNOWLEDGE_ID = KNOWLEDGE_ID where KNOWLEDGE_ID = #{KNOWLEDGE_ID} select from where KNOWLEDGE_ID = #{KNOWLEDGE_ID} select from where 1=1 and ( ) select from select from where 1 = 1 and P_ID = #{P_ID} and P_ID is NULL and SUBJECT_ID = #{SUBJECT_ID} and KNOWLEDGE_FROM = #{KNOWLEDGE_FROM} order by RANK delete from where KNOWLEDGE_ID in #{item}