Trying to modify a constraint in PostgreSQL

Question

I have checked the documentation provided by Oracle and found a way to modify a constraint without dropping the table. Problem is, it errors out at modify as it does not recogn

Answer 1

According to the correct manual (which is supplied by PostgreSQL, not by Oracle), there is no modify constraint available in the ALTER TABLE statement:

Here is the link to the correct manual:

http://www.postgresql.org/docs/current/static/sql-altertable.html