Deadlocked error message when running crystal report

Question

Hi All,
I need a bit of guidance as to the following problem.
Seems there is a lock being created in SQL when running some crystal reports.
When trying to run a report the following message is displayed:
Database connection Error L 'ADO Error Code: 0x
Source: Microsoft SQL Native Client
Description: Transaction (Process ID 302) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
SQL State: 40001
Native Error: [Database Vendor Code: 1205 ]'
The error is happening intermittently when refreshing the report. It does not seem to happen when no users are using the system.
Is there any way to stop this from happening? Or is this some kind of limitation with crystal and how it accesses the database?
Many Thanks,
Matt

Answer 1

Hi Matt
I have had this problem with long running queries as well.  I ended up doing the main part of the query in a view using WITH (NOLOCK) for each table and then reporting on the view.
This had extra benefits of making the report much simpler and often making the query more efficient and easier to test as well.
Rob