BUG: Access Violation When Adding CHECK Constraint w/ ESCAPE Keyword

ID: Q247019

The information in this article applies to:

Microsoft SQL Server version 7.0

BUG #: 55656 (SQLBUG_70)

SYMPTOMS

An access violation (AV) is caused when an ALTER TABLE statement is run to add a CHECK constraint and if the constraint definition contains the ESCAPE keyword. An error message similar to the following appears.

ODBC: Msg 0, Level 19, State 1
SqlDumpExceptionHandler: Process 7 generated fatal exception c0000005 EXCEPTION_ACCESS_VIOLATION. SQL Server is terminating this process.

Connection Broken

WORKAROUND

Avoid using the ESCAPE keyword when defining CHECK constraints.

STATUS

Microsoft has confirmed this to be a problem in SQL Server version 7.0.

MORE INFORMATION

Steps to Reproduce the Problem

The following script demonstrates the problem.


create table abc (col1 varchar(10))
go
alter table abc add constraint chk1 check (col1 like '~_xyz' escape '~')
go

Additional query words: gpf gp fault

Keywords : SSrvGPF kbbug7.00
Version : winnt:7.0
Platform : winnt
Issue type : kbbug