Updating database vb
encounters a change to a Data Row, it uses the Insert Command, Update Command, or Delete Command to process the change. Rows(0) category Row("Category Name") = "New Beverages" adapter. Write Line("Rows after update.") Dim row As Data Row For Each row In category Table. Write Line(": ", row(0), row(1)) Next End Using End Sub either by returning the auto-increment value as an output parameter of a stored procedure and mapping that to a column in a table, by returning the auto-increment value in the first row of a result set returned by a stored procedure or SQL statement, or by using the are sent to the data source is important.
This allows you to maximize the performance of your ADO. For example, if a primary key value for an existing row is updated, and a new row has been added with the new primary key value as a foreign key, it is important to process the update before the insert. By specifying a subset of rows to be updated, you can control the order in which inserts, updates, and deletes are processed.
After this, you can proceed to build your ADO-based VB database applications.
To do this, simply press Ctrl T to open the components dialog box and select Microsoft Active X Data Control 6.
After that, click the Next button to select the file BIBLO. You can click on Text Connection to ensure proper connection of the database file. Finally, click on the Record Source property and set the command type to ad Cmd Table and Table name to Titles.
To be able to access and manage a database, you need to connect the ADO data control to a database file. b) Click on the Connection String property, the Property Pages dialog box will appear, as shown in Figure 25.2.
NET application by specifying command syntax at design time and, where possible, through the use of stored procedures. For example, the following code ensures that the deleted rows of the table are processed first, then the updated rows, and then the inserted rows.