ID_, CLASSIFY_ID_, CLASSIFY_NAME_, CLASSIFY_PATH_, TITLE_, IS_URL_, URL_, CONTENT_, SN_, END_TIME_, ROTATING_DISPLAY_PICTURES_, TITLE_DESCRIPTION_, PAGE_HEIGHT_, TENANT_ID_, CREATE_TIME_, CREATE_BY_, UPDATE_TIME_, UPDATE_BY_, TYPE_,ICON_COLOR_,TAG_ delete from portal_news_notice_ where CLASSIFY_ID_ = #{classifyId} delete from portal_news_notice_ where CLASSIFY_ID_ in (select id_ from portal_news_tree_ where PARENT_ID_ = #{parentId}) SELECT t1.*,( CASE WHEN t2.id_ is NULL THEN 0 ELSE 1 END ) AS reader FROM portal_news_notice_ t1 LEFT JOIN portal_news_notice_read t2 ON t1.ID_ = t2.PORTAL_NEWS_NOTICE_ID_ AND t2.USER_ID_= #{userId} ${ew.customSqlSegment} order by t1.sn_ ASC,t1.CREATE_TIME_ DESC