Multiple decimal separators

Question

Hi Team,
I have a requirement like I will get a data file from external system. I have some columns to validate like
All percentage and amount fields are checked on multiple decimal separators and non numeric characters.
Can anyone can give me guidance to achieve it.
Cheers
Sriram.

Answer 1

From my point of you need to validate that , flat file data is in proper number format or not ?
for that i have listed one funtion that will help you
CREATE OR REPLACE FUNCTION isNumber(arg IN VARCHAR2) RETURN NUMBER IS
n NUMBER;
BEGIN
     BEGIN
          n := TO_NUMBER(arg);
          EXCEPTION
               WHEN VALUE_ERROR THEN
                    RETURN 1;
               WHEN INVALID_NUMBER THEN
               RETURN 1;
     END;
     RETURN 0;
END isNumber;
Now Try like this
Select * from table where isnumber(columnname) = 1 /* to find the invalid number rows */
Same as you can create the % function also.
Thanks
Pranav