刪除b表中與a表不同的記錄 delete from b where not exists( select * from a where a.id=b.id and a. name =b. name ) delete from b where b.id not in ( select a.id from a) or b. name not in ( select a. name from a) delete from v9_pho
update v9_hits SET hitsid = REPLACE(hitsid,c-12-,c-13-) where 1 = ( case when(select COUNT(*) from v9_photo where id=replace(hitsid,c-12-,))0 then 1 else 0 end) updatev9_hitsSEThitsid=REPLACE(hitsid,c-12-,c-13-) fromv9_hits,v9_photowhereid=
今天要查看數(shù)據庫中的時間,因為數(shù)據庫中的時間格式保存的是int類型,一時半會...
(1)單網頁: {loop $arrchild_arr $cid}!--只適應用單網頁-- li {if $catid==$c...
CentOS 6.1操作系統(tǒng)升級至Centos 7.7.1908操作過程記錄步驟如下: 1.查看下當前...
jQuery UI Autocomplete根據用戶輸入值進行搜索和過濾,讓用戶快速找到并從預設...
Jquery countUp.js數(shù)字變換和滾動事件監(jiān)聽的實現(xiàn)代碼片段,以下代碼為項目開發(fā)...
beyondcode/laravel-query-detector擴展包是一款查找問題的探測器,可以很方便...
一、需求分析 要球自定義文件上傳類,即在使用非常簡便的前提下,又可以完成以...
指定瀏覽器的渲染引擎代碼: meta http-equiv=X-UA-Compatible content=IE=edge...