m a and UFI, the Global Association of the Exhibition Industry, report on the latest news from the exhibition community.
There is already an ISO standard for this; no need to invent your own scheme: Per the standard, the column should be called "Sex" and the 'closest' data type would be tinyint with a CHECK constraint or lookup table as appropriate.
Edit I should clarify that I'm using MS SQL 2008, which DOES in fact have the bit datatype.
Edit #2 A few funny answers around more than 2 genders and using the is Male column.
Depending on the jurisdiction, those convicted of sexual offenses may be subject to housing restrictions and how far away they must remain from minors, schools, and daycare centers. Megan's Law mandates a sex offender registration service and community notification.
The details of what information is available vary from state-to-state.