Hello all.
I dropped a foreing key (accidentally) and I want to restore it, but
it is not possible, the error message is:

"This operation is not defined for system tables.
unsuccessful metadata update.
object PROPS_ATTS_LINKS is in use ."

PROPS_ATTS_LINKS is the referenced table. It seems that the FK was not
deleted from metadata.
How can I restore the FK?

Thank in advance,
William GS