David-
I've thought of both dbms_sql and dummy conditions too. Oracle Application reports
use the dummy
conditions all the time.
I'm off to see if you can set cursor_sharing at the session level and not use bind
params.
I'm assuming no one else has figured this out either due to the lack of response.
Ron Thomas
Hypercom, Inc
[EMAIL PROTECTED]
Each new user of a new system uncovers a new class of bugs. -- Kernighan
[EMAIL PROTECTED]
To: [EMAIL PROTECTED]
09/20/02 01:28 AM cc:
Please respond to Subject: RE: PL/SQL help
ORACLE-L
Ron
We've run into this problem and haven't really found a satisfactory answer.
It sounds like a job for dbms_sql, but the docs say its slower than native
dynamic sql. Has anyone tested this? One other alternative I can think of
(but have never tried) is to use dummy conditions in the sql; something
like: -
c_sql := 'select col1 from atable where col2 = :1 and :2 is null and :3 is
null';
--
David Lord
> -----Original Message-----
> From: Ron Thomas [mailto:[EMAIL PROTECTED]]
> Sent: 19 September 2002 19:53
> To: Multiple recipients of list ORACLE-L
> Subject: PL/SQL help
>
>
>
> I am building a dynamic sql statement which will contain
> varying number of bind variables depending
> on user selection criteria. As an example, the sql statement may be:
>
> c_sql := 'select col1 from atable where col2 = :1' ;
>
> or it may be
>
> c_sql := 'select col1 from atable where col2 = :1 and col2
> between :2 and :3' ;
>
> or it may be ... etc. I am trying to avoid ugly code such as:
>
> IF case1 THEN
> OPEN csr FOR c_sql USING var1 ;
> ELSIF case2 THEN
> OPEN csr FOR c_sql USING var1, var2, var3 ;
> ELSIF .....
> END IF ;
>
> Once the sql statement is created, it will be opened/closed
> multiple times, so I want to use bind
> variables to avoid parsing.
>
> So I thought, hum, sounds like a job for EXECUTE IMMEDIATE,
> but in the various incarnations I tried,
> could not get it to work. The FM have not been much help
> (still looking tho).
>
> What am I missing?
>
> Thanks,
> Ron Thomas
> Hypercom, Inc
> [EMAIL PROTECTED]
> Each new user of a new system uncovers a new class of bugs.
> -- Kernighan
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Ron Thomas
> INET: [EMAIL PROTECTED]
>
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