>>BTW, I could not find how to add TABLE validation rule.
>
>Prepare a simple DB with all procedures you wan. Then use GENDBC and check what code it generates :-)

I found the table validation rules, BTW: (in How to: Create Record Validation Rules topic)

ALTER TABLE Employee SET CHECK Hire_Date >= birth_date + (18 * 365.25) ;
ERROR "Employees must be 18 years or older by date of hire."