Oracle Sequence starting with 2 instead of 1

Question

Unexpected behavior:

I am encountering strange behavior of Oracle sequences with 11g (works with 10g):

CREATE SEQUENCE test_sequence         


        

Answer 1

I'd say the cause is this "undocumented feature". See My Oracle Support Document ID 1273858.1 (which is unfortunately behind a paywall and cannot be copied here).

Try it without deferred segment creation and see if the problem persists.