Thanks for the advice I was leaning towards the numeric solution but using 'T' 
/ 'F' as a visual clue makes a lot of sense.  After all until we do have a new 
boolean data type that visual clue is all we have.  I am already looking 
forward to the next version:-)

Ian

----- Original Message ----
From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>

Well the best practice would be to extend the known data types to include a
Boolean. ;-)

There are two options.
You can create a CHAR(1) column, or if the database you could do a
byte/short column as well. 

If you use a CHAR(1) you could represent the Boolean as either ('T' or 'F')
or ('Y','N'). You would also want to put a check constraint on the column
only allowing a true and a false value.

You could also use a 1 or a 0 in the column as well and provide the same
check constraint, however using a T/F or Y/N provides a visual cue that
would be missing from a numeric solution.

HTH

-G







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