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
"RDB$PRIMARY43"
Null segment of UNIQUE KEY

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

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