Question

I need to switch between some databases at the same time (using VB.net). As far as I know, I must create some connection Strings and use them in different conditions.

For example

If ( condition )  then 
  use connection String 1
elseif (condition)  then 
  use connection String 2 
end if 

Can anyone help me how to handle this?
I’m using MSSQL 2005 and VB.net

Answer 1

In VB.NET, you need to add a module and write few functions there. And use these function to establish and close connection to Database.

Variables:
ConnectionString variables (both)

Functions:

• Close_Database_Connection(): If connection is open then close it.
• Create_Database_Connection(condition_param): Here you put your
  conditions in If Else Structure. Like:

Code:

If ( condition ) Then
        use connection String 1 
    ElseIf (condition) Then
        use connection String 2 
    End If

Use this “Create_Database_Connection(condition_param)” Method where you need to establish connection in code depending upon you conditional parameters.