Simple CDC, the simplest CDC. Here, each CDC table change is captured independently, and there is no need to consider the consistency of data between tables that have primary foreign key reference relationships.1 Environment PreparationSOURCE table: Odi_src. DEPT Target table: Odi_tag. DEPT Configuration topology See the creation and configuration of the ODI stud
Back to CatalogIf we want to monitor the change of a data table, in the previous version of sql2008, it is possible to think of only triggers on the database side, or to implement the corresponding functions by monitoring their own insert,update,delete at the terminal, which is undoubtedly frightening to us, Not flexible enough, and when the sql2008, this situation has been fundamentally changed, SQL2008 provides us with the CDC function, it can be in
CDC::BITBLT Introduction2011-11-04 08:25 19576 People read review (6) Favorite ReportFromhttp://blog.csdn.net/bberdong/article/details/6934270There are many ways to draw a device context. For example, by creating a bit drawing brush, you can use it to fill an area to achieve image rendering. In addition, you can use the CDC class's bitmap function to output a bitmap to the device context.The BitBlt is used
Today, when drawing a graph in the dialog box, I encountered a problem:
The onpaint function that is reloaded in the dialog box is as follows:
Crect rect; CDC * PDC = getdc (); CDC memdc; getclientrect ( rect); cbitmap membitmap; memdc. createcompatibledc (null); membitmap. createcompatiblebitmap (PDC, rect. width (), rect. height (); memdc. setbkmode (transparent); memdc. selectObject ( membitmap); colorr
[Switch] compatible with the CDC to save the entire screen program and further thoughts
// Hwnd getasktopwindow () returns the handle of the desktop windowCDC * pdeskdc = getdesktopwindow ()-> getdc (); // obtain the pointer (handle) of the context of the desktop window)
Crect rect;Getclienttopwindow ()-> getclientrect (rect); // obtain the customer region of the desktop screen
CDC memdc; // defines a memo
How to Create a CDC class from HDC?
Sometimes Windows API will give you a DC handle, and you can create a CDC class through it. For example, drop-down list, combo box, And button. With HDC, you will receive the draw message. The following describes how to convert HDC to a more familiar CDC.Program. You can also use this technique to convert any other MFC class and Windows handle.
Void mydlist: drawitem (l
The CDC (change data Capture) records the time, type, and actual data changes of the DML operation by asynchronously reading the transaction log, and then logs the data to a table that is automatically created when the CDC is enabled. Detailed data changes can be obtained through CDC-related stored procedures. Because the data change is read asynchronously, it ha
Reference: http://bbs.csdn.net/topics/30173861
Reference: http://www.360doc.com/content/13/0507/21/10724725_283723432.shtml
Owed by: Spring Night rain Http://blog.csdn.net/chunyexiyu reprint, please indicate the source
The graphics used are drawn to the device (CDC), and also need to bind the drawing before drawing (CBitmap) First Introduction: HDC/CDC conversion Cbitmap/hbitmap/bitmap Conversion
Hdc:handle
What is the difference between 1.CDC *PDC and HDC hdc , similar to CWnd *pwnd and HWND?
The PDC is a class pointerHDC is a Windows handleObtain HDC through the PDC:HDC Hdc=pdc->getsafehdc ();To obtain the PDC through HDC:CDC *pdc=new CDC;Pdc->attach (HDC);
2.hDC is fundamentally different from the CDC.
HDC is a data type of windows and is a device description
The CDC class defines the class of the device context object, which is called the device Environment object class.Windows is displayed using a device-independent graphical device environment (Dc:device context).When it comes to the CDC class, you cannot mention the gdiobject--graphical object class. In a Windows application, the device environment works with graphical objects to work together to complete th
First, let's talk about DC (device description table)Solution:Windows ApplicationsProgramCreate a device context table (DC) for a specified device (screen, printer, etc.) to draw a picture on the canvas of the logical meaning represented by DC. DC is a data structure that contains device information. It contains various status information required by physical devices.. Before drawing a graph, the Win32 program needs to obtain the DC handle HDC and release it when it is not used.
Classes such a
This article describes how to use simple CDC for Oracle ODI 12c. It is the simplest kind of CDC. In this mode, each CDC table change is captured independently, and there is no need to consider data consistency between multiple tables with primary foreign key reference relationships.1. Import Knowledge ModulePrior to this, all the knowledge modules have been impor
Tags: installation file generate net T-SQL load ref down title VFP In the previous article, using CDC (data change capture) in SSIS 2012 , describes how to use CDC in SSIS 2012, which is explained on this basis. How to implement change capture on Oracle data tables through the Attunity provided by the changes data capture Designer for Oracle .The same need to do some preparatory work:1. Configure Oracle dat
Hwnd is the window handle. You need to use this handle to obtain some properties of the window. HDC is the context handle for window display. It is only required for graphic and text output in the window. Hwnd has a wider application scope. With hwnd, you can use the getdc () function of the API to obtain the HDC related to it.
Cdc dc;CDC is a class, and DC is an object of it. This class is specially used
All are DC. HDC is the original DC handle. The first parameter of many APIS is an HDC type. For exampleHDC hDC =: GetDC (m_hWnd);: MoveToEx (hDC, 0,100, NULL);: LineTo (hDC,);: ReleaseDC (m_hWnd, hDC );In MFC, a CDC is added to encapsulate an API as a class for operation. So in MFCCDC dc = GetDC (); dc. MoveTo (0, 0); dc. LineTo (0,100); this-> ReleaseDC ( dc );However, this is not enough, because the CDC r
CDC (data transfer between different clocks) is the biggest headache in ASIC/FPGA design. CDC itself is divided into synchronous clock domain and asynchronous clock domain. Note that the synchronous clock domain refers to the clock domain with a certain relationship between the clock frequency and the phase, not necessarily only the clock with the same frequency and phase is the synchronous clock domain. Th
Tags: display ogg order HTTP SQL name setup begin CLIThis article mainly describes the Ogg 12.3 through the CDC extraction of SQL Server enterprise process, delivery configuration is relatively simple, so not elaborated here. Overview of configuration steps1. Unzip the Ogg 12.3 for SQL Server Software, execute create subdirs, edit Mgr and start.2. Database installation configuration, and patching3. Create schema Ogg4. Create a test table5. Create a Gl
Tag: des color io using SP file data on codeVC/MFC's Hdc,cdc,cwindowdc,cclientdc,cpaintdc Detailed:First of all, what is a DC (Device description table)Solution: A Windows Application draws graphics on the "canvas" of the logical meaning of the DC representation by creating a device description table for the specified device (screen, printer, etc.). A DC is a data structure that contains device information that contains the various state information r
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.