You can try this modification:
FUNCTION FN_NEW_TEST (Lat Number) RETURN NUMBER AS
my_var NUMBER(5,3);
BEGIN
my_var:=Lat;
RETURN my_var;
END;
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Question
Specify number format for returned value from function
How do I specify the number format for the returned variable.
the following code will compile if I remove the (5,3).
The view works fine in oracle but Access doesn't want to display the decimal values in a combo box and instead displays a bunch of chinese type characters when I use the results as a recordsource.
I've tried converting the results to character format but then I can't sort the results....aargh!
create or replace
FUNCTION FN_NEW_TEST
(Lat Number)
RETURN NUMBER(5,3) AS
BEGIN
RETURN Lat;
END;
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Answers
All valid responses to my question, I've tried Henka's method but it still comes back in chinese type characters when I use the results as a recordsource in access.
This is probably more of an access issue but I wanted to explorer the possibility of passing a pre-defined number format. I'm now going to shoot myself as its driving me nuts.
You can create a function that will return a character value in the desired format. However, I suspect Access will do an implicit conversion and display it in its default format. It may be worth a try.
SQL> create or replace function sho_fmt(no_in in number) return varchar2 is
2 v_no varchar2(12);
3 begin
4 v_no := to_char(no_in,'999.999');
5 return v_no;
6 end;
7 /
Function created.
SQL> select sho_fmt(10.67) from dual;
SHO_FMT(10.67)
--------------------------
10.670
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by: HenkaPosted on 2007-01-19 at 00:25:12ID: 18347650
"number format for the returned variable" - it cannot be done. -> this is from documentation:
RETURN Clause
For datatype, specify the datatype of the return value of the function. Because every function must return a value, this clause is required. The return value can have any datatype supported by PL/SQL.
Note:
Oracle SQL does not support calling of functions with Boolean parameters or returns. Therefore, if your user-defined functions will be called from SQL statements, you must design them to return numbers (0 or 1) or character strings ('TRUE' or 'FALSE').
The datatype cannot specify a length, precision, or scale. Oracle Database derives the length, precision, or scale of the return value from the environment from which the function is called.