Oracle-L: Branching logic in PL/SQL, positive instead of exception

From: Hagedorn, Linda <lindah_at_epocrates.com>
Date: Wed, 13 Mar 2002 12:34:01 -0800
Message-ID: <F001.00427E67.20020313123401@fatcity.com>

Hello,

I'm looking for an example of structured PL/SQL code that does not use exception logic for branching, but instead recognizes that data is found.

As a bad example,

Select col1 from test.table t where exists (select z.zip from zip_table z where t.zip=z.zip ) into v_col1 ;
exception
when no_data_found
begin
select col2 from test.table2 t2 where exists (select z.zip from zip_table z where t2.zip=z.zip) into v_col1 ; ;

   exception
   when no_data_found
     begin

I've checked the books and cannot see how to test for a positive result instead of a negative (exception) result.

Does anyone have a good example of branching logic on record found?

Thanks, Linda

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Author: Hagedorn, Linda
INET: lindah_at_epocrates.com

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