I know the below facts

Rules and Constraints place restrictions on the values of table columns or
user defined datatypes. Constraints provide added flexibility. Rules are
limited in that their definition can only contain constant data values and
that only one rule may be bound to a column or datatype.

Now I would like to know

If I have the option to implement rules or constraints or static
tables(table which include all the possible values a column can have) for my
application which if these are best for the performance, extendibility
(adding or removing the values).

Any help is greatly appreciated

Thanks
Sivarama