Oracle's lack of a Bit datatype for table columns

Question

Oracle does not support a bit datatype or any other type for true/false scenarios. Does one use the char(1) field instead by using a specific letter to

Answer 1

According to this Oracle guide - you should use NUMBER(3). Crazy, but true.

http://docs.oracle.com/cd/B19306_01/gateways.102/b14270/apa.htm