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Record Set:
The record set presents the records in a base table or the records retrieved due to the query. The record set falls into 3 classes. These are table type record sets, dyna set & the snap shot type record sets.
(i)Table Type Record Sets:
The Table type record sets present a base table in the Microsoft Jet data base.
(ii) Dyna Set Type Record Sets:
The Dyna set type record sets are the resulting of a query.
(iii)Snap shot Type Record Sets:
The Snap shot type record sets presents a static copy of the records.
(iv) Data Source:
The Data source is a specific illustration made up of the 4 components.
The database associated projects are made up of the MFC database classes. The ODBC driver manager uses the driver interacts with the database as shown in figure.
Figure: Working of a Database Application
DEVICE CONTEXT The device context provides the essential drawing tools and the platform to draw. It helps to draw the text, shapes, lines etc. To create the device context, the
ILLUSTRATION OF MDI APPLICATION USING A PROJECT 1. Choose the MDI option while generating the project by using the Appwizard. 2. Add the WM_LBUTTONDOWN message for the view
- I have the chapter 5 project completed already. This is due tomorrow. Modify the Very Very .Boards project from Chapter 5 to separate the user interface from the business logic.
Adding Events in VB For adding the events in VB, first double click on the command button with the caption hello. The Private Sub command1_Click () and End Sub would be
Files in a SDI and MDI Application: Both the SDI and MDI projects have 4 implementation files (.cpp extension). These are the files equivalent to the Document Class, View Clas
1. Create a new solution file named Ch03HandsOnProject1. 2. Rename the form and set the filename of the form to frmMain and frmMain.vb, respectively. 3. Set the appropriate p
CONTROL ARRAY The control array is a group of similar objects with similar name. Adding controls with control arrays uses less resource than simply adding the multiple controls
A variable is convenient placeholder which refers to a computer memory location where you can store program information which may change when your script is running. For instance,
dfd of simple calculator
Variable Length Strings: The Strings can be declared using As or $ as shown in the code below; the msg and msg1 are the two strings and they are assigned the values using '='.
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