Category: Indexing

Performance Tuning

SQL Server training for developers: primary keys & indexes

I had to do some developer training last week and I wrote up a paper on the basics of primary keys and indexes. Sure, there's tons of similar stuff around the net, but this is MINE, baby.
Our Table: Phone Numbers
For our evil training purposes, let's say we work for the phone company, and we need a database table with phone numbers. We need to track:

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