× 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.



" BTW it is never a good ide to use SELECT *!"

Personally, I'd say "almost never". Can you explain why it's better for the SELECT (in static SQL) to explicitly list every single column rather than doing SELECT *?


Thanks



-----Original Message-----
From: Birgitta Hauser [mailto:Hauser@xxxxxxxxxxxxxxx]
Sent: Friday, May 01, 2020 10:38 AM
To: 'RPG programming on IBM i' <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: Implicitly hidden column & EXTNAME D/S

That is a problem with RPG / SQL and embedded SQL!

Even though the implicitly hidden columns are not displayed when executing SELECT * FROM, the RPG external data structure based on the table includes all columns (also the implicitly hidden ones).
You may create an additional view, based on SELECT * (without the implicitly hidden columns) and then use this view as base for the external data structure.

BTW it is never a good ide to use SELECT *!
It is much better to retrieve only the information/columns you really need.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser


"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok) "What is worse than training your staff and losing them? Not training them and keeping them!"
"Train people well enough so they can leave, treat them well enough so they don't want to." (Richard Branson)


As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:
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.