INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Order of fields in WHERE

Order of fields in WHERE

(OP)
Hi,

If I use a composite index, say Field1, Field2, Field3, the order in which these fields are listed in WHERE clause will be important? And if yes, then how should I list them: from top to bottom or from bottom to top?

This is ACCESS database.

Thank you!

vladk

RE: Order of fields in WHERE

No. It doesn't matter what order you use.

Do note however that when you mix "AND" and "OR" operators in a WHERE clause, "AND" us evaluated first and then "OR". Use parentheses to ensure that the order of evaluation is what you intend.

RE: Order of fields in WHERE

(OP)
Golom,

Thank you!

vladk

 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close