Hi

>VFP: {01/01/2005}
>MSSQL: '01/01/2005' ?
>FIREBIRD: ?

'2005-01-01', or '2005/01/01' . Firebird will automatically cast to date type.

>or logical 'true' representation such as
>VFP: .t.
>MSSQL: ?
>FIREBIRD:?

Firebird hasn't boolean type (will be in 2.0 verion, currently in beta
You can use SMALLINT type with CHECK IN(0,1)