""Nick Upson"" <uebridger@...> wrote in message
news:F83i5ZYFehZRQWgrfNV0000ab2f@......

> $ gotest
> Database: x1:/usr/jam7/data/test. User: SYSDBA
> SQL> ALTER TABLE ENQHDR DROP CONSTRAINT ENQHDR_FK1;
> Statement failed, SQLCODE = -902
>
> Error reading data from the connection.
> SQL> exit;
> Statement failed, SQLCODE = -902
>
> Error reading data from the connection.
> Broken pipe
> $
>
> any other statement in place of the exit above gives the same output.

Is this a local connection on Windows? Which engine version?
Does the engine die after that? Are you using isql or another tool?
Apparently it's caused by an internal problem when dropping the constraint,
it could be an indication of corruption. Can't say more without enough info.

C.
--
Claudio Valderrama C. - http://www.cvalde.com - http://www.firebirdSql.org
Independent developer
Owner of the Interbase® WebRing