Recently, according to the company's plan, we need to incrementally fetch data from some tables in the previous SQL Server database to the ORACLE database, and decide to use the newly added CDC (Change Data Capture) function in sqlserver2008. Procedure
Recently, according to the company's plan, we need to incrementally fetch data from some tables in the previous SQL Server database to the ORACLE database, and decide to use the newly added
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
unsigned integer.
Transfer from: http://longzxr.blog.sohu.com/187934817.html
DC (Device Description table): A Windows application draws graphics on the "canvas" of the logical meaning that the DC represents by creating a device description table for the specified device (screen, printer, and so on). A DC is a data structure that contains device information that contains the various state information required by a physical device. The WIN32 program needs to get the DC handle hdc before drawi
L GDI graphic interface
L Drawing Graphics
L DC, HDC device CDC
L draw a rectangle
1. Learn about GDIAnd Gui
GDIIt is the abbreviation of graphics device interface. It meansGraphical Device InterfaceIts main task is to exchange information between the system and the drawing program, and process the graphics output of all Windows programs.
In Windows, most applications with graphical interfaces are inseparable from GDI. With the many functions provide
(grantee => 'cdc _ stg_pub');/* create a subscriber and grant the permission */create user cdc_stg_user identified by cdc_stg_user default tablespace users temporary tablespace temp; grant connect, resource to cdc_stg_user;3. CDC Enabled3.1 create a source tableSqlplus cdc_source/cdc_source;/* log on to the source database */create table emp as select * from scott. emp;/* from scott. emp table create emp t
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
IBM InfoSphere CDC is a powerful data real-time replication software that is not only widely used for heterogeneous platform integration of traditional ODS, data warehouses, data marts and BI systems, but also provides full support for cloud, and for various cloud scenarios, CDC not only provides low impact , near real-time mass data replication, while also ensuring the integrity and security of data during
Transferred from: http://www.jizhuomi.com/software/244.htmlThe previous section speaks of the knowledge of text output, the main content of this section is the CDC class and its screen drawing functions.Introduction to CDC classesThe CDC class is a device context class.The CDC class provides member functions to handle
very painful, need to write a lot of triggers, and affect database performance. After 2008, Microsoft turned on the CDC feature. Here's an introduction:the full name of the CDC isChange Data Capture, as the name implies, is used to track and capture data changes. The CDC is a new feature that appears in SQL Server 2008, and this feature was earlier in Oracle. Fo
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
Full Text address: http://justmei.blog.163.com/blog/static/1160998532010321112522467/What is the CDC class (Communication Device Class)The CDC class for USB is the abbreviation for the USB Communication device class (Communication device Class). The CDC class is a USB subclass defined by the USB organization that is dedicated to a variety of communication devices
When explaining the new features of SQL Server Bi yesterday, I mentioned an enhancement of SQL Server 2008 database engine, namely, Change Data Capture (CDC): Change Data Capture.
It seems that everyone is interested in this function, and many people ask questions. Let me sort out the key points.
1. What is the purpose of CDC?
CDC is a mechanism that greatly f
Starting with 08, SQL Server provides a feature called change data capture CDC, which enables you to view the changes in the data of the table objects in the database by enabling this feature. (I feel like a bit of a data change function that SQL Server provides directly to the user.)According to the official statement. Using the CDC feature has the following benefits1, this is the database comes with the f
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
Address: http://hi.baidu.com/techat/blog/item/93b3523039e7f595a8018e38.html
Now many computers do not have 232, especially laptop computers. This makes it very inconvenient for many debugging personnel to use the mobile phone. Maybe you can buy a USB to 232 conversion line on the market, but the anti-interference of these lines is not very good, in some places where the interference is large, there will be connection interruption, so it is often necessary to add an optical coupling isolator
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
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
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
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