Re: Running OS commands from SQL

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxx>]

That version of qcmdexc is a procedure. Very cool, of course.

Even cooler might be the UDF (scalar function) version IBM have provided 
- this lets you use qcmdexc() as a column in the column list of a SELECT 
- and you can build the command from other columns in the statement, and 
the command will be run for each set of values. It returns a 1 if 
successful.

It's available for 7.3 and 7.4 - here's a link that will lead to more 
info - https://www.ibm.com/support/pages/qsys2qcmdexc

An example to whet your appetite -

Hold any jobs that started running an SQL statement more than 2 hours ago.
SELECT JOB_NAME, CASE WHEN QSYS2.QCMDEXC('HLDJOB ' CONCAT JOB_NAME) = 1 
THEN 'Job Held' ELSE 'Job not held' END AS HLDJOB_RESULT FROM TABLE 
(QSYS2.ACTIVE_JOB_INFO (DETAILED_INFO=> 'ALL')) WHERE 
SQL_STATEMENT_START_TIMESTAMP < CURRENT TIMESTAMP - 2 HOURS;

Cheers
Vern

On 11/4/2021 12:19 PM, Stephen Landess wrote:
> Thanks!
>
> -----Original Message-----
> From: MIDRANGE-L<midrange-l-bounces@xxxxxxxxxxxxxxxxxx>  On Behalf Of Tim Fathers
> Sent: Thursday, November 4, 2021 11:56 AM
> To:midrange-l@xxxxxxxxxxxxxxxxxx
> Subject: Re: Running OS commands from SQL
>
> There's a version in QSYS2 for that
>
> call qsys2.qcmdexc('........');
>
> Tim.
>
> ________________________________
> From: MIDRANGE-L<midrange-l-bounces@xxxxxxxxxxxxxxxxxx>  on behalf of Stephen Landess<steve_landess@xxxxxxxxxxx>
> Sent: 04 November 2021 16:28
> To:midrange-l@xxxxxxxxxxxxxxxxxx  <midrange-l@xxxxxxxxxxxxxxxxxx>
> Subject: Running OS commands from SQL
>
> Brain Fart!
>
> I'm drawing a blank and I can't find my old examples since I changed jobs.
>
> In SQL you can execute commands by specifying CALL QCMDEXEC( '<command to run>' , <length of command string>)
>
> But there is another way to do it which doesn't require the length parameter.
>
> What is it?
>
> Regards,
> Steve
>
>
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