> if i set a field as a primary key, does it automatically make sure its
> unique or should i declare a UNIQUE constraint as well? or will primary do
> the job by itself.
a primary key is always unique. No need to give it an extra unique index.
Greetings,
Ansgar
http://www.mysqlfront.de/
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hi sql ppls,
if i set a field as a primary key, does it automatically make sure its
unique or should i declare a UNIQUE constraint as well? or will primary do
the job by itself.
thanks
- Josh
[EMAIL PROTECTED]
-
Before pos
