ADD ALL COLUMS is the default.
... but you could also list columns (as you can do it in DDS)
... you can also add WHERE conditions which are much more powerful than
SELECT/OMIT Clauses
.. you can also built new key values based on SQL scalar functions, for
example YEAR(SalesDate) or UPPER(Name) which is again much more powerful
then DDS.
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)
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Greg
Wilburn
Sent: Freitag, 16. Oktober 2020 19:39
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: SQL Equivalent of CRTLF
OK... that's what I tried with the "Manage Schemas" in ACS. But my index
(LF) only had the two key fields available.
I see from your article: "RCDFMT myFile ADD ALL COLUMNS"
Is that why? I've never seen that before. But I think I found the options
in ACS.
Now my issue is that I don't have the time to learn and experiment with DDL
(which is often the case). I have to get this done and move on.
I can see why moving away from DDS has taken so long.
-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of
Birgitta Hauser
Sent: Friday, October 16, 2020 1:09 PM
To: 'RPG programming on IBM i' <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: SQL Equivalent of CRTLF
If you want a keyed access with native I/O you need to create an index!
BTW SQL Indexes can not be specified in an SQL Statement, but they can be
used in composition with native I/O like any keyed DDS described logical
file.
You may read the following article:
SQL indexes and native I/O - no contradiction
https://developer.ibm.com/technologies/systems/articles/i-sql-indexs-and-nat
ive-io/
... and SQL is much more powerful and much easier than DDS ... and DDS is
stabilized and outdated
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)
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Greg
Wilburn
Sent: Freitag, 16. Oktober 2020 16:47
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: SQL Equivalent of CRTLF
I've been using SQL I programs and to create views for quite some time. I'm
trying to force myself away from DDS.
So I created a new table with SQL... now I need to create a subset of that
table by way of a logical file (I want to use RPG Native access in my
program), which can also be updated.
Is there a simple way to create a view of my table that contains all columns
"where" one of the columns is blank?
My current take on DDL versus DDS is that DDS is much, much easier and
faster to use.
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