Formatting an SQL numeric query result with an arbitrary number of decimal places

Question

I have a database table with these two columns:

• Amount: numeric (18,0)
• DecimalPlaces: numeric (18,0)

This table can store amounts in va

Answer 1

Your problem is that there isn't an easy way to do this for both SQLServer and Oracle in one query.

The Correct way to do this for SQLServer is to use STR:

Select STR(Amount, 18, DecimalPlaces) from myTable;

The correct way to do this for Oracle is using to_char:

SELECT to_char (amount, '99999999999999.'||rpad('',DecimalPlaces, '0')) 
from MyTable;

The queries presented by jms and Andrew won't work in an Oracle query because Oracle SQL uses LENGTH() not LEN(). And Oracle uses to_char() not Cast().