Updating record in vb net
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Now we write code to perform the operations described in this article. In the first line of code, an instance of a Sql Connection is created.
In the finally block I am closing the Sql Connection by the Close() method.
My mistake, the actual database has been updated but the dataset that retrieved the data from the sql server has not.
* My mistake, the actual database has been updated but the dataset that retrieved the data from the sql server has not.
If you have a Data Set/Data Table then why are you using Execute Non Query at all?
(I should have checked the server to see if it had been updated first). I needed it to use two values (Model name and User ID) so that if there is a model that had the same name as another, but was owned by a different user, then it wouldn't update the wrong record.
The following section will show you how to test updating, inserting, and deleting the data.
Follow the Code Bank link in my signature and check out my Retrieving & Saving Data thread for two examples: one with a command builder and one without.
Edit the contents of the Data Set/Data Table first, then call Update on the same data adapter you used to retrieve the data in the first place to save those changes back to the database.
Connection = Database 'Opens connection to the database Database Error) End Try When you call Execute Non Query there are only three possible outcomes: 1. If it is 3, follow the first link in my signature to learn how to manage local data files.
The operation succeeds and the method returns zero, indicating that no records were affected. The operation succeeds and the method returns a non-zero value, indicating that that many records were affected. You say that it's not 1 so that means that either it is 2 and your WHERE clause is faulty or it's 3 and the database is indeed being updated and you're just not looking for the changes in the right place or at the right time.
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Bind variables are placeholders inside a SQL statement.