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Replace Natural Key
By Richard Rost   Richard Rost on Twitter Richard Rost on LinkedIn Email Richard Rost   21 days ago

How to Replace a Natural Key with an Autonumber

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In this Microsoft Access tutorial I'm going to teach you how to replace a Natural Key, such as a phone number, social security number, product code, etc. with a Surrogate Key (Autonumber). 

Stacey from Enfield, Connecticut (a Silver Member) writes: I am planning to replace my primary key of a major table in my database that is in production, with an autonumber as recommended in the Access Expert classes.  I will have a lot of relationships to update after the fact. Any advice or tips would be appreciated. I use a number generated by another system, but have to manually enter it. The table is related to a handful of others.

Marko from Valrico, Florida (a Platinum Member) writes: I'm pondering the same exact question. I have a main table with a manual primary key and that drives all my other tables. The primary key is a lot id. It's a permanent id assigned to a piece of property and can never change and I thought I was safe with it; however if I take on more clients there may be issues with the lot id as primary key. The key is set up as an address of 2575 Smith Lane would get a lot id of 2575SL.



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Keywords: TechHelp Access Natural key, surrogate key, autonumber, primary key, pk, foreign key, fk, replace a natural key with an autonumber  PermaLink  Replace Natural Key in Microsoft Access