Question

I have a custom type defined as this :

CREATE TYPE myType_t AS VARRAY(2) of char(10);

Is it possible to add a check constraint on the char(10) type, so myType_t items respect a certain regex? I tried things like

CREATE TYPE myType_t AS VARRAY(2) of char(10)
( constraint c_myType_format check ( regexp_like(IdontKnowWhatToWriteHere, '[:digit:]{8}'));

which obviously doesn’t work… I thought maybe defining another type for the

AS VARRAY(2) of myOtherType_t

but here again I don’t know where to put the regex check.

And yes, I also tried adding the constraint to the table that will use my type, but I can’t find the correct syntax.

Answer 1

According to Oracle documentation:

Oracle does not support constraints on columns or attributes whose
type is a user-defined object, nested table, VARRAY, REF, or LOB