SQL Performance between platforms

["Chuck Morehead" <cbmorehead@xxxxxxxxxx>]

I am updating an Access database on a PC from a database on the AS/400.  I am using a VB program to perform the update.  The logic looks like this:

 

Select all records from the AS/400 table

Loop through the record set

   Select the corresponding record from the Access database

   If it does not exist Then

     Insert the record into the Access database

   Else

     If the data is different between the two records Then

        Update the Access database record

     End If

   End If

End Loop

 

The problem I have is the amount of time this takes to run (almost 370,000 records in the table).  I know that this is sloppy SQL style, but (as far as I know) I can only access one database (either AS/400 or Access) with each SQL statement.  Does anyone have suggestions on how to streamline such a process?

 

Thanks!

 

Chuck Morehead
Nokuse Consulting - Providing the highest value in Information Systems Services.
Native Bear Software - Providing Industry Specific Software Solutions to small- and medium-sized businesses.
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