title: Oracle - adding foreign constraint in disabled state?
body: <p>I need to add a foreign key constraint but initially it should be disabled. I can add it in <code>create table</code> sentence or in an <code>alter table</code>  sentence, it does not matter. I do not know the reason behind this request (it may be <code>ORA-02298: cannot validate (BLA.BLA_FK) - parent keys not found</code> ) but I was asked to do it this way. So what is the correct sentence for this in Oracle database?</p>