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Dieter;

Mixing SQL and RLA to process the same file/record set, is something to shy away from IMO, but I have broken that rule twice, because it fit the situation.

You CAN have more granular control of a transaction with SQL but it is not easier with SQL. I don't know what you mean by record locking being more flexible or easier???

SQL CAN be more loosely coupled to the database but you can couple SQL as tightly to the DB as RLA (*).

I would like to know what this means, "SQL does more type checking at compiletime and at runtime" because AFAIK it is the DBMS that does all of the type checking at runtime, and both compilers attempt to keep you from miss typing columns.

Duane Christen

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of dieter.bender@xxxxxxxxxxxx
Sent: Friday, November 19, 2010 10:05 AM
To: RPG programming on the IBM i / System i
Subject: Re: RPG SQL and Cursors

- using one technology is easier than mixing up two
- transaction handling and record locking is more flexible and easier to
maintain with SQL
- SQL access is looser coupled to the database than RLA
- SQL does more type checking at compiletime and at runtime

Dieter

--------------------------------------------------
From: "Aaron Bartell" <aaronbartell@xxxxxxxxx>
Sent: Friday, November 19, 2010 4:33 PM
To: "RPG programming on the IBM i / System i" <rpg400-l@xxxxxxxxxxxx>
Subject: Re: RPG SQL and Cursors

And why not? Say you had an app with a list of records that the user was
allowed to sort by any column and specify search criteria in a text input
at
the top - that is much easier to code in SQL than RLA in my opinion, but
then when it comes time to edit one of the result records and update it,
well then I go back to RLA.

Aaron Bartell
www.MowYourLawn.com/blog
www.OpenRPGUI.com
www.SoftwareSavesLives.com



On Fri, Nov 19, 2010 at 9:13 AM, <dieter.bender@xxxxxxxxxxxx> wrote:

... I wouldn't use a mix of RLA and SQL, but maybe thats a question of
flavour and I'm tired of discussions about microseconds.

Dieter


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