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Is it possible to use the DMax fn on multiple fields in multiple domains?

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Hey. So the problem that I'm running into involves auto-numbering invoice numbers. My boss has 3 tables, 2 of which are only to temporarily store information, but when she goes to create a new invoice number, it doesn't take into consideration all three tables, and therefore she is getting repeat invoice numbers - a real nightmare.

To fix this, I want to code a DMax + 1 function instead of the autonumber, but I am running into the issue of trying to DMax from multiple fields across multiple domains. I've tried running a query with just the invoice numbers and that doesn't help. Is this possible?

Jul 15 '10 #1
2 2319
3,080 Recognized Expert Specialist
You should first consider to redesign the tables.
Only one "production " table with invoices would be the way to go to avoid dupes.

When you can indicate why there are two temp invoice tables, perhaps we can propose a solution.

Jul 15 '10 #2
8,834 Recognized Expert Expert
Are you trying to retrieve a MAXIMUM Inv_ID Number as it relates to e separate Tables, and then increment it by 1? If you are you can let a simple Function do the work for you and return the appropriate Value for you.
Jul 16 '10 #3

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