FreeTDS Development Group

["Patrick Dunnigan" <patrick.dunnigan AT centivia.com>]

thank you,

one more question, is there any performance gain from dbsqlexec once for say 
10 sql statements compared to 10 times for those same sql statements?


----- Original Message ----- 
From: "Jorge Cordero" <jorge.cordero AT gmx.net>
To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
Sent: Thursday, June 23, 2005 6:09 PM
Subject: RE: [freetds] DBlib dbsqlexec question (chaining sql statements)



Yes, a white space is enough to separate to commands... but a new line
will look nicer in the Profiler utility.

But remember, dbresults must be called for each statement in the
command batch. A loop would be practical for this.

Also consider your Isolation Level and the proper Commit to end your
transaction...


-----Mensaje original-----
De: freetds-bounces AT lists.ibiblio.org
[mailto:freetds-bounces AT lists.ibiblio.org]En nombre de Patrick
Dunnigan
Enviado el: Thursday, June 23, 2005 04:11 PM
Para: freetds AT lists.ibiblio.org
Asunto: [freetds] DBlib dbsqlexec question (chaining sql statements)


Hi,

Have two (maybe more) sql statements that I'd like to run. I am
wondering if I can execute them at the same time. Example:

Now:
int i = 1;
int j = 3;
dbfcmd(dbproc,"delete from sss where col1 = %d",i);
dbsqlexec(dbproc);
dbresults(dbproc);
dbfcmd(dbproc,"delete from zzz where col1 = %d",j);
dbsqlexec(dbproc);
dbresults(dbproc);

I'd like to do:

dbfcmd(dbproc,"delete from sss where col1 = %d\n",i);
dbfcmd(dbproc,"delete from zzz where col1 = %d",j);
dbsqlexec(dbproc);
dbresults(dbproc);

Is there a command seperator that I put after the newline and / or how
many times to I have to call dbsqlexec or dbresults? Would this save
roundtrips to the database or is the method the way to go?
Thanks
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