update inspection_standard_check <trim prefix="set" suffixOverrides=","> <if test="lineCode != null and lineCode != ''"> line_code = #{lineCode}, </if> <if test="lineCode == null and lineCode ==

空字符串"> line_code = null, </if> <if test="checkName != null and checkName != ''"> check_name = #{checkName}, </if> <if test="checkName == null and checkName == ''"> check_name = null, </if> <if test="checkMethod != null and checkMethod != ''"> check_method = #{checkMethod}, </if> <if test="checkMethod == null and checkMethod == ''"> check_method = null, </if> <if test="description != null and description != ''"> description = #{description}, </if> <if test="description == null and description == ''"> description = null, </if> <if test="sortNo != null"> sort_no = #{sortNo}, </if> <if test="sortNo == null"> sort_no = null, </if> <if test="updateBy != null and updateBy != ''"> update_by = #{updateBy}, </if> <if test="updateBy == null and updateBy == ''"> update_by = null, </if> <if test="updateTime != null"> update_time = #{updateTime}, </if> <if test="updateTime == null"> update_time = null, </if> </trim> where id = #{id}

请问这段代码是用来做什么的？