Re: SQL Delete question

["Tom Jedrzejewicz @ San Pedro" <TJedrzejewicz@xxxxxxxxxxxx>]

How about skipping the SQL entirely -- CPYF with a field test out, and
CPYF MBROPT(*REPLACE) back.  You will need to to this when no one is
using the file, but it will be relatively quick.

CPYF FROMFILE(BPCSF/ESN) TOFILE(QTEMP/ESN) MBROPT(*REPLACE)
CRTFILE(*YES)  INCREL((*IF SNDESC *NE 'blah blah blah'))

CPYF FROMFILE(QTEMP/ESN) TOFILE(BPCSF/ESN) MBROPT(*REPLACE)

This has the added benefit of doing the reorg at the same time.

BTW -- shouldn't you have some file size limits so that this doesn't
happen again?  a single process adding 2 million records is nuts.

>>> martin@dbg400.net 01/21/03 12:00PM >>>
On Tuesday 21 January 2003 5:24 pm, Dennis Munro wrote:
[snip]
>
> Below is the SQL statement used & I am wondering is there something
> that would "speed" up the process.  .
>
> <SNIP>
> DELETE FROM BPCSF/ESN WHERE SNTYPE = 'P' and SNDESC =
> 'Billing date: approx. 4/15/02 March 2002 usage'
> Z<SNIP>
>
> Sure is a simple "program" to accomplish the job but what about
> performance? We run 24x7 so letting the SQL statement run some
weekend
> would impact the least amount of users if that is the only option &
I
> am not against doing that???

Hi Dennis

If the records were written by the one rogue process, is there a chance

that the block of records were all consecutive? If so you could delete
by 
rrn which I think woud be quicker. 
 delete from ESN where rrn(esn) > xxxx and rrn(esn) < yyy

Regards, Martin
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