Error in Database accessing!!!

Question

Hello,
i get this error when the application is running..... this i quite often
Error Type : SQL FETECH Cursor error, couldn't do a physical order read to
fetch next row. (ISAM error code: -107 DB_ER_INVALID STATE)
Class :qqdb_usageException
Error # :[807,13]
Detected at : qqdb_informix cursor :: vendor fetech from server at 10
Error Time Informix SQLSTATE : 1*100, informix error : -244, server: forte,
username : , Database stmt: Select sessionkey, , , from <table name> where
useid = '2000'.
exception occured(locally) on partition'....09', on node <node name> in
environment <env name>
Thanks in Advance
DB_ER_INVALIDSTATE = incorrect use of a cursor or other database object(For
example, where
a program attempts to fetech from a cursor that is not open).

Answer 1

Hmm,
From the informix finderror utility
<START QUOTE>
-107 ISAM error: record is locked.
Another user request has locked the record that you requested or the file
(table) that contains it. This condition is normally transient. A program
can recover by rolling back the current transaction, waiting a short time,
and re-executing the operation. For interactive SQL, redo the operation. For
C-ISAM programs, review the program logic and make sure that it can handle
this case, which is a normal event in multiprogramming systems. You can
obtain exclusive access to a table by passing the ISEXCLLOCK flag to isopen.
For SQL programs, review the program logic and make sure that it can handle
this case, which is a normal event in multiprogramming systems. The simplest
way to handle this error is to use the statement SET LOCK MODE TO WAIT. For
bulk updates, see the LOCK TABLE statement and the EXCLUSIVE clause of the
DATABASE statement.
<END QUOTE>
I have found that whenever I see the phrase "couldn't do a physical
order read to fetch next row." it means the database has tried to read a
locked record and lock mode is set to NO WAIT or the lock mode has timed
out.
There are a number of solutions. The main one being to try again
later.
Cheers
David McPaul
Lumley Technology
-----Original Message-----
From: Forte App [mailto:[email protected]]
Sent: Thursday, November 18, 1999 8:45 AM
To: [email protected]
Subject: (forte-users) Error in Database accessing!!!
Hello,
i get this error when the application is running..... this i
quite often
Error Type : SQL FETECH Cursor error, couldn't do a physical
order read to
fetch next row. (ISAM error code: -107 DB_ER_INVALID STATE)
Class :qqdb_usageException
Error # :[807,13]
Detected at : qqdb_informix cursor :: vendor fetech from server at 10
Error Time Informix SQLSTATE : 1*100, informix error : -244,
server: forte,
username : , Database stmt: Select sessionkey, , , from
<table name> where
useid = '2000'.
exception occured(locally) on partition'....09', on node
<node name> in
environment <env name>
Thanks in Advance
DB_ER_INVALIDSTATE = incorrect use of a cursor or other
database object(For
example, where
a program attempts to fetech from a cursor that is not open).
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