Should I use integer primary IDs?
Posted
by arthurprs
on Stack Overflow
See other posts from Stack Overflow
or by arthurprs
Published on 2010-04-17T21:22:03Z
Indexed on
2010/04/17
23:33 UTC
Read the original article
Hit count: 265
For example, I always generate an auto-increment field for the users table, but I also specify a UNIQUE index on their usernames. There are situations that I first need to get the userId for a given username and then execute the desired query, or use a JOIN in the desired query. It's 2 trips to the database or a JOIN vs. a varchar index.
Should I use integer primary IDs?
Is there a real performance benefit on INT over small VARCHAR indexes?
© Stack Overflow or respective owner
