Subject | Does the primary key constraint create an index ? |
---|---|
Author | robertz82 |
Post date | 2008-10-02T09:01:38Z |
Hello,
I just wondered about the Firebird PK constraint. Will my PK column(s)
be indexed automatically when I create it?
(alter table xyz add constraint PKNAME primary key)
Or do I have to create an additional unique index, in order to speed up
querys asking for the PK column(s) ?
Greetings,
Robert
I just wondered about the Firebird PK constraint. Will my PK column(s)
be indexed automatically when I create it?
(alter table xyz add constraint PKNAME primary key)
Or do I have to create an additional unique index, in order to speed up
querys asking for the PK column(s) ?
Greetings,
Robert