A string value associated to the registry by registry_set. If the variable does not exist, a 0 (zero) is returned.
registry_get is used to retrieve values stored within database registry.
SQL> select registry_get('var_demo'); callret VARCHAR __________________________________________________________________ NULL SQL> registry_set('var_demo', 'some arb data'); SQL> select registry_get('var_demo'); callret VARCHAR __________________________________________________________________ some arb data