I post this question earlier but no one seems to answser, so I post again.

DEFERRABLE | NOT DEFERRABLE options mean that constraints can be set to DEFERRED | NOT DEFERRED by SET CONSTRAINT(S) ?
So, initial constraint state is set by INITIALLY DEFERRED | INITIALLY IMMEDIATE , and if a constraint is set DEFFERABLE INITIALLY IMMEDIATE, it means that constraint is set INITIALLY IMMEDIATE, but can be changed to DEFFERABLE by SETTING CONSTRAINT(S) command ?

Need your help on this.

Thank you so much.

Woo