Adding A Boolean To My Column Type

[tomyknoker]

I need to add a column in my database, which will be called 'MemberPackSent' basically I want to send out a pack to members, just wondering would I make this a Boolean? Do I need to specify the 'Length' or is a Boolean simply always 1 or 0?

[Fumigator]

Define it as tinyint and use 1 and 0.