function getIframeDoc(id){ var doc; if (document.all){//IE doc = document.frames[id].document; }else{//Firefox doc = document.getElementById(id).contentDocument; }
UPDATE DB1.A SET a = ( SELECT b FROM DB2.B WHERE B.Id = A.id) 实例: UPDATE wordpress.`wp_posts` SET post_content = ( SELECT `内容` FROM test.`content` WHERE content.Id = wp_posts.`ID`)
利用助手(widget)在页面实现表单 控制器中 <?php class YiiFormController extends Controller { public function actionIndex() { $bbsInfoModel = new BbsInfo();//实例化当前要添加数据库中表的模型 //这个array的参数值是让页面中的表单用的 $this->render("index",array("bbsInfoModel"=>$
查看所有mysql数据库表和索引大小 mysql查看当前所有的数据库和索引大小 ,),' mb') as data_size, concat(,),'mb') as index_size from information_schema.tables group by table_schema order by data_length desc; mysql查看当前某个数据库和数据库下所有的表的大小 ,),' mb') as data_size, concat(,),' mb') as index