User guide

!!! Error and *** Warning Type Messages
Error Messages
B–18 058058 Tandem Computers Incorporated
!!! ERROR [178] Record on right side of link optional is linked back to record
on left
Within your query specifications, a link exists that illegally links the record description
specified on the right side of a LINK OPTIONAL statement back to the record
description specified on the left side of the LINK OPTIONAL statement. Refer to the
ENFORM Reference Manual for more information about links and the LINK
OPTIONAL statement.
!!! ERROR [179] Record appears on the right side of more than one link
optional
Your query specifications contain one or more illegal links that violate rule 2 for the
LINK OPTIONAL statement. (Rule 2 states that a record description can only appear
once on the right side of a LINK OPTIONAL statement.) Refer to the ENFORM
Reference Manual for more information about illegal links with the LINK OPTIONAL
statement.
!!! ERROR (Attempt to divide by zero)
An error occurred because an attempt was made to divide by a field containing a data
value of zero.
!!! ERROR (Cost tolerance exceeded) : required cost = n
The strategy that the query processor will need to use to execute the query is greater
than the value (n) you specified for the @COST-TOLERANCE option variable.
!!! ERROR (Messages not in expected order)
The query processor received an unexpected message from the query compiler/report
writer. If the query processor is running as a server in NonStop mode, this message
might indicate failure of the primary process. Otherwise, this message indicates an
error in the ENFORM software.