Re: How to aggregate PL/SQL records into a Result Set?

Most probably it will be somewhat slower, but here is a plan:

-- create buffer table.
-- create PL/SQL procedure that
---- clean buffer table
---- populate table from any number of selects
-- from java code
-- call pl/sql procedure
-- call simplest select from buffer table

this can be better and from error handling point of view

AlexV.

"Thomas Kyte" <tkyte_at_oracle.com> wrote in message news:agaa3m0ahj_at_drn.newsguy.com...
> In article <c9bc36ff.0207071227.141865fc_at_posting.google.com>,
ramon_at_conexus.net
> says...
> >
> >Server Side:
> >SPARC Solaris 8
> >Oracle 9i RDBMS, PL/SQL
> >
> >Client Side:
> >Sun Java 1.4
> >Borland JBuilder 7 SE
> >MS Windows XP
> >
> >
> >My application is almost ready, but it is still missing a
> >last, and very critical link. The objective is to have a
> >Java GUI client in which the user types a value, clicks on
> >a button and the program makes a JDBC call to a remote PL/SQL
> >stored function. The returned values (it's a read-only app)
> >are displayed, each record on a separate tabbed panel.
> >
> >The Java app is basically ready and the Oracle stored function
> >too, but I still have to make them talk properly to each other.
> >
> >The basic problem is that the Java front end expects to receive a
> >Result Set in the way documented here (pretty standard stuff):
> >
> > http://osi.oracle.com/~tkyte/ResultSets/index.html
> >
> >However, I don't know how to write a stored function which
> >will return a Result Set.
> >
> >Here's the catch: my PL/SQL subprogram has to select-query a
> >whole bunch of tables (many tables BUT all of them have exactly
> >the same layout). Since the query is done on a unique key
> >WHERE condition, each query returns precisely zero or one records.
> >So, from the server side I have several independent records
> >which I need to aggregate somehow, and convert them in a
> >Result Set which is the return variable of the stored function.
> >
> >So how can I "build" piecewise, -adding a record at a time-
> >a Result Set in PL/SQL?
> >
> >
> >TIA,
> >
> >-Ramon F. Herrera
> >
> >ps:
> >
> >Is there something like this?:
> >
> > ResultSet[1] := v_Record1;
> > ResultSet[2] := v_Record2;
> > ResultSet[3] := v_Record3;
> > RETURN ResultSet;
>
>
> see
>
>

http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:444748922 1109
>
> for an example of a pipelined function... sounds like what you want.
>
> --
> Thomas Kyte (tkyte@oracle.com) http://asktom.oracle.com/
> Expert one on one Oracle, programming techniques and solutions for Oracle.
> http://www.amazon.com/exec/obidos/ASIN/1861004826/
> Opinions are mine and do not necessarily reflect those of Oracle Corp
>
Received on Sun Jul 07 2002 - 21:49:17 CDT