Re: Running SQL scripts

Edmund,

Yes! This would actually be a great solution to the RFE request--at least
to my thinking. As would support for more than just RPG--i.e., COBOL would
be of very beneficial, too. I added a comment to the RFE referencing this
thread.

As for Visual Explain, I rarely let something go to production without
running it through visual explain. Authority would only be an issue in a
production environment.

<soapbox warning!>

Going to SQL doesn't change the requirements for a separate development
environment where programmers have authority to do anything needed to
fully test and optimize a system. It seems that some folks think SQL is a
substitute for it. I think such logic is foolish and lacking full thought.

</soapbox warning!>

Thanks,
Michael Quigley
Computer Services
The Way International
www.TheWay.org

"WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxx> wrote on 10/30/2014 03:50:12 PM:

----- Message from Edmund Reinhardt <edmund.reinhardt@xxxxxxxxxx> on
Thu, 30 Oct 2014 15:38:57 -0400 -----

To:

Rational Developer for IBM i / Websphere Development Studio Client
for System i & iSeries <wdsci-l@xxxxxxxxxxxx>

Subject:

Re: [WDSCI-L] Running SQL scripts


I have thoughts about that too.

On that way from RDi to SQL script editor
Strip DECLARE .. prefix and put in comment
Let the developer play with just the SELECT statement
On the way back, prepend from the DECLARE comment

Just thoughts
BTW, would you see what I proposed as a sufficient solution to RFE

http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=11052

Regarding the RFE on visual explain.

http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=11086

When I was discussing this with Mark Anderson he didn't think that
developers had the authority or interest or expertise to use visual

explain

to optimize queries beyond noticing the need to index certain tables.

But

I see 46 votes on this RFE. Are developers making active use of Visual
Explain?



Regards,

Edmund (E.H.) Reinhardt
Technical Architect for Rational Developer for i



Phone: 1-905-413-3125 | Home: 1-905-854-6195
E-mail: edmund.reinhardt@xxxxxxxxxx
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www.youtube.com/user/IBMRational#g/c/62DF24D5BCD43501 Markham,
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From: Buck Calabro <kc2hiz@xxxxxxxxx>
To: wdsci-l@xxxxxxxxxxxx
Date: 30/10/2014 03:15 PM
Subject: Re: [WDSCI-L] Running SQL scripts
Sent by: "WDSCI-L" <wdsci-l-bounces@xxxxxxxxxxxx>



On 10/30/2014 2:56 PM, Jon Everton wrote:

Create a stored procedure using input parameters with the table and

schema

name. Use the SQL function REPLACE to put your variables into the SQL
statement. Send me an email and I'll send you an example if this

rather

poor

explanation confuses you.

That's clear Jon, thanks. This thread is morphing into a discussion on
integrating Data Studio with RDi. Imagine you have an existing SQLRPGLE
program with a DECLARE CURSOR as below. You'd like to make some changes
to that SQL statement, what does one do?

Rectangle select, copy, tab to Data Studio, paste. Replace the host
variables with literals, test. Edit, test, repeat. When happy with the
new SQL statement, copy in Data Studio, tab to RDi, select, paste.
Adjust formatting. Save, compile, test. Forgot to replace literals,
wonder why program doesn't work. Replace literals with host variables.
Save, compile, test.

It's better than a sharp stick in the eye, but that's a low bar :-)

date: Thu, 30 Oct 2014 14:30:16 -0400
from: Buck Calabro <kc2hiz@xxxxxxxxx>
subject: Re: [WDSCI-L] Running SQL scripts

On 10/30/2014 2:10 PM, Edmund Reinhardt wrote:

There is a small subset of IBM Data Studio which is shipped with RDi.
Now that IBM Data Studio itself is free, you can get the full

features

of the product. The SQL running/editing/diagramming is relevant to
IBM i. The query tuning is not since it is geared to LUW DBW (not

IBM

i).

I am thinking about developing better integration with RDi

eventually,

so I am following this thread with interest.

So if there was an easy way to get embedded SQL into an SQL script
editor in IBM Data Studio would this help write, test queries?

Mad utopian dreamer alert!

Given:
select SYSTEM_COLUMN_NAME, DATA_TYPE, "LENGTH", NUMERIC_SCALE,
COLUMN_TEXT, IS_NULLABLE, "CCSID", SYSTEM_TABLE_NAME,
SYSTEM_TABLE_SCHEMA, COLNO
from SYSCOLUMNS
where SYSTEM_TABLE_NAME = :REF_FILE and
SYSTEM_TABLE_SCHEMA = :REF_LIBR;

I would love to have the test/debug tool/IDE be able to 'declare'
variables :REF_FILE and :REF_LIBR as well as populate them with values

and

then execute this code as-is. Once my SQL is working properly, I

could

then

cut / paste it back into my HLL as-is without having to remove

literals

and

replace them with host variables.

Similar to the ability SDA has to populate fields for testing (STRSDA

option

3).

--
--buck

'I had nothing to offer anybody except my own confusion' - Jack Kerouac
--