Re: General DB Design Question - How to avoid redundancy in table relationships

2006-02-14 Thread Bob Gailer
Scott Klarenbach wrote: These are the tables in question: RFQ (Request for Quote) Part Inventory Inventory items ALWAYS have a partID. RFQ items ALWAYS have a partID. However, sometimes, RFQ items have an inventoryID as well. Now, we have a redundancy problem. Because, in those instances

General DB Design Question - How to avoid redundancy in table relationships

2006-02-13 Thread Scott Klarenbach
These are the tables in question: RFQ (Request for Quote) Part Inventory Inventory items ALWAYS have a partID. RFQ items ALWAYS have a partID. However, sometimes, RFQ items have an inventoryID as well. Now, we have a redundancy problem. Because, in those instances when the RFQ has an

Re: General DB Design Question - How to avoid redundancy in table relationships

2006-02-13 Thread Peter Brawley
Scott, I'm sure this type of problem is run up against all the time, and I'm wondering what the best practice methodology is from experienced DBA's. It looks like the kind of problem database schemas are meant to _avoid_. >From your description it seems you have ... part ( partID PRIMARY