Number of decimals in an application

Question

Hi all,
I need to change the number of decimals in some applications, and have been reading some threads about it. I have found some different explanations, and I would like to make sure of how to do it.
1) What do the numbers in the parameter SIGNED_DATA_FORMAT mean? For example 25,10 means:
      a) we have 25 digits to the left of the comma and 10 to the right, like 1234567891234567891234567.1234567890
      b) we have 25 digits in total and 10 for the decimals, like 123456789123456.1234567890
2) If the correct answer to the previous question is "b" (I think that is the correct one), 25 is the maximum amount of numbers we can have? Could we set 50,15?
3) what is the correct way of inputting the value in the parameter (in BPC Web Admin Application parameters)? (I mean, like 25,10 or (25,10) or "25,10" or 25.10 or.....). We had a problem some time ago with this ( Full Optimize Problem ).
4) so, to make the modification, we should first set the parameter in an application, then make a copy of the application (the new one will have the number of decimals changed), then delete the first application, right?
Thank you very much,
Rafael

Answer 1

Hi Sorin,
thank you very much for such a clear answer.
Regarding the question of how to give the parameter value, we did input once 25,10 and ended up in an error upon "modify application" execution. We actually had to delete that entry (Full Optimize Problem) because BPC seemed to not like the comma at all in the tblDefaults table where that value is written (by the way, we did delete it through web admin as you suggested, not directly in the table, -almost- never delete directly from the table
If just a plain 25,10 is the appropriate value, do we need to delete that value from Web Admin once the application has been copied and processed? Should we rather not have any problem at all by inserting 25,10 in Web Admin?
Thank you,
Rafael