replace INTO code_contrast (id,drugCode,saleCode,isOldSale,userId, customerId) values ( #{id}, #{drugCode}, #{saleCode}, #{isOldSale}, #{userId}, #{customerId} ) replace INTO code_contrast (id,drugCode,saleCode,isOldSale,userId, customerId) VALUES ( #{item.id}, #{item.drugCode}, #{item.saleCode}, #{item.isOldSale}, #{item.userId}, #{item.customerId} ) DELETE FROM code_contrast WHERE id = #{id} select * FROM code_contrast WHERE id = #{id} select code_contrast.drugCode,code_contrast.saleCode,code_contrast.isOldSale from code_contrast INNER JOIN customer_contrast on code_contrast.id = customer_contrast.codeContrastId WHERE customer_contrast.customerId = #{customerId}