How to restrict string and date values in a Teradata table -

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is there way impose restriction on teradata table fields,

column education can contain: high school, bs, ms, phd , nothing else. if tries insert other string, referential integrity mechanism throw exception

also, there way impose restriction date field, such newly inserted date must >= current_date ?

thank experts

it's same other rdbms (besides compress part, teradata save disk space):

datecol date check(datecol >= current_date)

maybe add not null constraint. 

education varchar(11) check (education in ('high school', 'bs', 'ms', 'phd'))

in teradata should add compress ('high school', 'bs', 'ms', 'phd')to save disk space.

of course insert 4 values in table, add primary key , foreign key referencing column...


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