How do I assign the source table name at run time in a Select statement?

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SQL-Server-2012

The program I am writing is designed to be used on different databases at different times with different table names in the database. How can I write the Select statement to use a table name that is chosen at runtime? I tried putting the table name into a string variable "strTableName" and then writing the Select statement as follows:

Using da As New OleDbDataAdapter("Select * From strTableName", cnnSource)

But this will not work. If I assign a specific table name in the database, such as "MyTestData", and then write the Select statement as follows, it works:

Using da As New OleDbDataAdapter("Select * From MyTestData", cnnSource)

But I do not want to have to use that table name in every database.

Any Suggestions?

Posted 10-Apr-14 5:15am

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[no name] 10-Apr-14 11:18am

"this will not work", of course not. Learn about string concatenation or use string.Format.

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OriginalGriff · Accepted Answer · 2014-04-10T05:30:00

You could do it:

VB

Using da As New OleDbDataAdapter("Select * From " & strTableName, cnnSource)

- but you will have to be very, very careful where you get the table name from - concatenating strings to form an SQL command is seriously dangerous, and very bad practice! It leaves you wide open to SQL Injection if you don't pay attention and that can destroy your database.