Re: Using SQl to obtain a field value from one file or another

Alan,

You're welcome.

Don't let all those points to ponder discourage you from deepening your
knowledge and use of SQL. All those points to ponder are the SAME ones
you'd have to consider and address if this were being implemented in RPG,
or any other language.

Ex: you're coding in RPG, doing a READE to a file, you still have to ask
yourself:
* How many matching keys are possible?
* How many do I want to fetch?
* If I want one row out of many, how do I code it to fetch the desired row
and ignore the others?
* etc.

Since SQL, behind the scenes in its plumbing, provides most of the glue
code for you that bonds together all those I/O results, it simply allows
you to accomplish the same things with less lines of code (when used
optimally - i.e. SET logic).

Mike

date: Fri, 30 Jun 2017 21:51:52 +0000

from: Alan Shore <ashore@xxxxxxxx>
subject: RE: Using SQl to obtain a field value from one file or
another

Thanks for the reply Mike
Wow
Many things to Pinder and play with