Tanel Poder wrote:
> Boolean is a datatype existing and usable in Oracle.
> Deterministic is an Oracle way to tell a function is deterministic, i.e.
> always returning the same result on the same input. Required for FBIs for
> example.
> http://tahiti.oracle.com
Could you please kindly provide an example of its usage in SQL. Please create
an FBI using the original function below (as is, no modifications or wrappers).
It would be really intersting how "deterministic" functionality would work
for a PL/SQL function that returns BOOLEAN datatype. Thank you!
--
Vladimir Begun
The statements and opinions expressed here are my own and
do not necessarily represent those of Oracle Corporation.
>>boolean is not SQL datatype and it's unclear what "deterministic"
>>means here.
>>
>>Mladen Gogala wrote:
>>
>>>create or replace function
>>>isnumeric(str varchar2) return boolean deterministic
>>>as
>>> num number:=0;
>>>begin
>>> num:=to_number(str);
>>> return(true);
>>>exception
>>> when others then
>>>return(false);
>>>end;
>>>/
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Vladimir Begun
INET: Vladimir.Begun_at_oracle.com
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Received on Thu Sep 25 2003 - 21:04:40 CDT
