RE: Rollback Delete Query in STRSQL ?

Probably the easiest thing to do for interactive SQL is:

1) start journaling all the files you care about, i.e.
    STRJRNPF FILE(myLib/myFile) JRN(myLib/myJournal) IMAGES(*BOTH)
2) change your interactive session attributes to always run under commitment
control
    STRSQL
    F13
    1
    change Commitment Control to *ALL

>From this point on, you'll always be able to simply type ROLLBACK on your
interactive session to rollback all the changes you've made in that session.
Or if you want to keep changes without rolling them back (i.e. they're
'good' changes), you can and should type COMMIT instead.  Note that you
can't rollback commited changes.  
If you use neither COMMIT or ROLLBACK and end your job, rollback will take
place implicitly.  So make sure you use COMMIT if you want to keep any
updates, inserts or deletes!

You can start commitment control in other ways.  There is a CL command,
i.e.:
  STRCMTCTL LCKLVL(*ALL) CMTSCOPE(*JOB)

And you could use SQL command in the interactive session itself, i.e.:
  SET TRANSACTION ISOLATION LEVEL ALL

Key is that you're already journaling before and after images, so commitment
control is able to function properly.

Elvis

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Luqman
Sent: Thursday, September 15, 2005 5:00 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Rollback Delete Query in STRSQL ?

As far as I know, I can create the journal of the table, but how can I start

the committment control and use transaction isolation level in STRSQL ?
As I have never used such options on AS/400 before ?


Best Regards,

Luqman


"Elvis Budimlic" 
<ebudimlic@xxxxxxxxxxxxxxxxxxxxxxxxx> 
wrote in message news:031801c5b935$edd63190$6e01a8c0@xxxxxxxx
> Yes, if you're journaling the file, have started the commitment control 
> and
> are using transaction isolation level other than *NONE in STRSQL.
>
> -----Original Message-----
> Subject: Rollback Delete Query in STRSQL ?
>
> Is it possible to rollback a delete or update query in STRSQL of AS/400 ?
>
> Best Regards,
>
> Luqman
>
>
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