Multiple Field Unique Information Db?

Aug 14, 2006

Hi, I'm crating this db:

Two tables, in one there are Items and services, in the other purchases.

1st table: ID - autonumber primary key
Product Name - Text
Quantity - Number
Barcode - Text

2ndt table: ID - autonumber primary key
Product Name - Text
Quantity - Number
Barcode - Text
Client - Text
Puchase Date - Date

How can I enter data to my 2nd table using unique fields (barcode, Product name actually ID in 1st table?) Problem Is Access alows only 1 unique key field in table and that is undertandable. Is there any way out in my situation.

barcode will be entered using barcode scanner it can be only text field but information like product name must fill in automatically, Product name must be drop down box if one wan't to select it manually then barcode should fill in automatically.

Please Attach your DB if you have time to look into this issue.

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