其他

 Oracle Server - Enterprise Edition - Version: 11.2.0.0 and later   [Release: 11.2 and later ]        Oracle ASM Configuration Assistant (ASMCA) can be used in silent command-line mode.        ASMCA supports only alias-based (net service name based)

 -- Suppose that the database instance name is "osmdr"-- In the database instance When trying to create a new spfile from a pfile under sqlplusSQL> create SPFILE='+DATA/osmdr/spfileosmdr.ora' from pfile='/home/oracle/osmdr.init';File

網上找到的一份關於VMware View及Citrix Xendesktop兩家使用的遠程協議的對比。從多個角度分析了兩家協議的區別，個人認為是一篇比較全面的對比文檔。PCoIP vs ICA協議虛擬桌面需求View PCoIP (UDP)XenDesktop ICA (TCP)描述功能性環境適應性網路掉包、延時、抖動支援不支援PCoIP可支援延時250ms,ICA無法支援高延時150ms.效能1、每一次串連需要進行3次握手雙方確認後，再進行資料轉送。2、TCP資料包封裝比UDP要複雜，欄位多、

在資料庫世界中沒有銀彈，選擇哪個資料完全取決於你自己，你要實現的目標，有多少資料需要儲存，你應用程式使用的作業系統和語言平台，你的預算，以及是否需要資料倉儲，BI或決策支援系統等。 　　背景　　我的許多朋友，開發人員，應用和系統架構師，有時甚至是系統管理員經常問我同類型的問題：“Bo，在我的應用程式中該使用SQL Server還是使用Oracle資料庫？”，“BO，我應該將我的Sybase資料庫遷移到SQL

        We have introduced three new functionalities to the ASMCMD utility to improve node recovery after a crash,repair bad blocks on a disk, copy files and simplify the listing of ASM disks in a diskgroup        ASMCMD is also extended to include

 Oracle Server - Enterprise Edition - Version: 10.1.0.2 to 10.2.0.4        This article will show how to display in dbconsole, information for the ASM instance used by the database.  This is particularly usefull if:（1）.      The database and ASM

        The present document provides a clear example about how to rename an ASM diskgroup on release 11gR2.  Solution 1)  First of all, the desired diskgroup needs to be dismounted (from each node if this is a RAC configuration): # asmcmd umount

！注意本方法僅適用於TP-LINK

  1) Please backup the database(s) contained inside the associated diskgroup.2) Then shutdown the databases contained inside the associated diskgroup.3) Dismount the associated diskgroup to verify no client database connections are accessing this

        This operation will DESTROY any databases that are currently running on the +ASM instance  1) Shutdown all databases that are running on the box using the +ASM instance for storage management2) Use emca -x <sid> to remove the Database

        rename diskgroup option is a new feature of 11gR2 .       The command renamedg was introduced in 11gR2; however, there are many cases where a diskgroup in a 10g or 11.1 environment needs to be renamed. You can use this tool to rename your

        One ASM DISK GROUP contains all of the available disks of the server. Need to  re-configure the current DISK GROUP to break it down into three different ASM disk groups. 注意事項：1). A DISK GROUP with single disk is possible only if the

         If all you are doing is changing the name of the disk, then the only thing that should be necessary from Oracle's perspective is to change the ASM_DISKSTRING parameter on the ASM instance. Alternatively, you may be able to just rename or

  之前做的一個實驗：       RAC 修改 ASM執行個體名 的步驟       http://blog.csdn.net/tianlesoftware/archive/2011/03/25/6275827.aspx         The following procedures do require some down time. One node at a time, we will shutdown all database instances that store their

 Oracle Server - Enterprise Edition - Version: 11.1.0.7 and later   [Release: 11.1 and later ]        The purpose of this note is to provide insight on how space allocation ( v$asm_file.space column ) in ASM can be calculated depending on Allocation

正如我們所知，當有標題列時，我們是可以隨便拖動視窗的，但是有時我們希望建立的視窗時沒有標題列的，而此時要想拖放該表單，我們就得另想辦法了，其實最簡單的思路就是重載表單的mousePressEvent和mouseMoveEvent兩個虛函數。其實這樣做就是可以的，雖然看是去是3有點簡單了。void YourWidget::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) {

 Oracle Server - Enterprise Edition - Version: 11.2.0.2 to 11.2.0.2 - Release: 11.2 to 11.2         you cannot create more than 1 voting disk in the same or on another/different diskgroup disk when using External Redundancy in 11.2.  The rules are

        Sometimes it can happen that the ASM contains empty system directories which cannot be removed. According to Note 3751057.8(ALTER DISKGROUP DROP DIRECTORY FORCE removes system aliases) the system generated directories should be removed

簡單來說其基本的概念：專門設定一個暫時儲存圖形資訊的記憶體，將所有暫時的畫圖內容先放到暫存CDC中，然後再放入完所有的以後調用.具體實現步驟1.首先是定義一個暫時的裝置上下文CDCh_BufDC;// 雙緩衝層CBitmapmemBitmap;//定義一個位元影像對象2.然後對其進行初始化CDC*pDC = GetDC();h_BufDC.CreateCompatibleDC(pDC);memBitmap.CreateCompatibleBitmap( pDC, SCREEN_W,

        This document describes how to prepare your storage sub-system before you configure Automatic Storage Management (ASM). When preparing your storage to use ASM, first determine the storage option for your system and then prepare the disk