If I have 2 tables (eg called Product + orders) and I want to delete all orders which do not have a product within the product table how could i do it assuming both tables have a "ProdID" field.
I'm writting an application to be used in windows 2000 and windows XP which programs up modems by sending them AT commands.
I've opened the connection to com1 fine but how ever i try to send the commands down i get errors.
If my serial port is defined as 'hCom' how can I send down commands...
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