Difference Between “NOT IN” and “NOT EXISTS”

0 pts.
Tags:
SQL
Whats the difference between "NOT IN" and "NOT EXISTS" and which is better to use in SQL Queries for the performance aspects.
ASKED: August 29, 2005  1:19 AM
UPDATED: August 30, 2005  12:33 AM

Answer Wiki

Thanks. We'll let you know when a new response is added.

A correctly formatted NOT EXISTS query will execute very quickly in comparison to a NOT IN query because the the NOT IN query must make a full table scan.

Discuss This Question:  

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following