Subject Database update problem
Author Riho-Rene Ellermaa
My program run database modification scripts (containing lots of
changes) in client computer.
Client reports that he gets this error during update:
ISC ERROR: 335544349
Attempt to store duplicate value (...) in unique index
Null segment of UNIQUE KEY

I obtained his database and tried it on my computer: everything works

What can be problem with this kind of different behaviour?
And what does this error mean - am I entering some duplicate NULL values
into index or....?

Riho Ellermaa