I see a line
ERRCODE = 100
in the SQL-Monitor ! but I have no idea which error causes this. ( no
exception is raised)
Is the ERRCODE the same as the SQLCODE in the IB language reference?

i found the following lines there

SQLCODE SQLCODE text InterBase number

...
100 No match for first value expression 335544338L
100 Invalid database key 335544354L
100 Attempted retrieval of more segments than exist 335544367L
100 Attempt to fetch past the last record in a record stream 335544374L
...

but this don´t help me much :(

Thanks in advance!

Oliver