Re: parameter to db function

--- Sheeraz fazal <ng@xxxxxxxxxxxxxxxxxxx> wrote:
> Thanks Jeff.
> Can you tell me if i have to pass parameters to a db
> function let's say it's
> name is
> 
> get_square(integer)
> 
> It returns square of a number. What will be the
> syntax of the ODBC call to
> invoke this function, and
> how you will specify the place holder for the
> returned value.

I don't do ODBC calls ;-)

Exactly how you handle this depends on your choice of
language and data access library.  In general: you
want to send a SQL string "SELECT
get_square(integer_value)", where "integer_value" is
determined at run time.  What you get back will be a
result set with one row and one column.  If you want
to refer to the column by name, you can specify a name
by adding the alias "AS my_column_name" to the SQL
string.

The rest you can get from the documentation for your
environment, particulary about how SQL queries and
result sets are handled.

> 
> Thanks.
> 
> ----- Original Message -----
> From: "Jeff Eckermann" <jeff_eckermann@xxxxxxxxx>
> To: "Sheeraz fazal" <ng@xxxxxxxxxxxxxxxxxxx>;
> <pgsql-odbc@xxxxxxxxxxxxxx>
> Sent: Tuesday, April 13, 2004 7:43 AM
> Subject: Re: [ODBC] parameter to db function
> 
> 
> > --- Sheeraz fazal <ng@xxxxxxxxxxxxxxxxxxx> wrote:
> > > Hi,
> > >
> > > Is it allowed to pass parameters to a db
> function
> > > through ODBC?
> >
> > Yes.  Just capture the values in your application,
> > then construct a query string and send it to the
> > server.
> >
> > >
> > > Thanks.
> > >
> > >
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> 



        
                
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