index already exists

Hi All,

I'm not sure whether i'm running into a problem with hsqldb or more simply my understanding of SQL indexes is to pot.

I've got a number of table in a hsqldb, i.e  DIVES, LOCATIONS

My Locations table as a column called Location_ID which is its primary key. The DIVES table also has a column called Location_ID, so I know at which location the Dives was at.

I want to create an index of the Location_ID in the dives table but when I do a "CREATE INDEX Location_ID on DIVES(Location_ID)"

I get back an "index already exists" error, it definately is NOT an index in the DIVES table. This is confusing me completely. I'm using DBVIsualizer as a GUI to maintain my HSQLDB tables.

Can anyone shed any light on why I'm getting this message back ?

Thanks,

Dave.
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