Hi,

> Is it possible to make a field unique without specifying an index on it?

Whenever you create a UNIQUE CONSTRAINT, InterBase/Firebird
will automatically create a unique index for it.

So, no.

Martijn Tonies
InterBase Workbench - the developer tool for InterBase and Firebird
http://www.interbaseworkbench.com

Upscene Productions
http://www.upscene.com

"This is an object-oriented system.
If we change anything, the users object."