BOOLEAN 應該用什麼代替呢?(編號：6447)

我的資料庫是用Access.我想在run-time時create table.可是怎也不能create BOOLEAN type的Variable.
Dim dbs As Database
Set dbs = OpenDatabase(TransacPath)
dbs.Execute "CREATE TABLE TempTable (id long , AccNo text, securities BOOLEAN); "
^^^^^^^
dbs.Close
BOOLEAN 應該用什麼代替呢?