× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



For performance reasons, I always go with option c in your list.

Celebrating 10-Years of SQL Performance Excellence

-----Original Message-----
Subject: SQL Question - Select * versus selecting all fields individually

Hi Everyone,

Someone here with lots of SQL experience but none with System i says:
"My 2 cents on your code is not to use Select *. Always list the columns
solely for performance reasons."

My thinking is to select all columns into an externally described DS based
on the table so I have everything I might need.

I could:
(a) keep my code as is, using select *, or
(b) select every field individually
(c) only select the fields I need, or

What is everyone doing when using embedded SQL?

Tks,

Glenn Gundermann



As an Amazon Associate we earn from qualifying purchases.

This thread ...

Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.