SQL Data Compare
Latest version: 10.0
Knowledge Base
SqlNullValueException occurring in synchronization wizard
Category: Troubleshooting & error messages
Date: 18 Nov 2008
Product: SQL Data Compare
Versions: 6.0
Fix Version: 6.1
After comparing the data of two databases using SQL Data Compare, clicking the synchronization wizard, choosing the synchronization direction, and clicking next may cause the following error to appear:
System.Data.SqlTypes.SqlNullValueException
This can happen if the destination SQL Server that you are synchronizing to has the SQL Backup software installed incorrectly or it is installed correctly but malfunctioning. SQL Data Compare checks for the presence of the Red Gate SQL Backup software so that it can offer the opportunity for you to back up your database before synchronizing it. If SQL Backup's SQBUTILITY extended stored procedure returns NULL valued data in certain fields of the result of SQL Data Compare's query, this exception can occur.
For instance, installing SQL Backup on a SQL Server 2000 without applying SQL Server Service Pack 3 or higher, a platform that is not supported by SQL Backup, will cause this error to occur.
This situation will be handled more gracefully in SQL Data Compare 6.1 so that a failure to collect data about the SQL Backup installation will not affect Data Compare except to restrict the backup before synchronization to only offer native SQL Server backups.
Document ID: KB200711000187 Keywords: SQL, Data, Compare,SqlNullValueException,crash,synchronization
Was this article helpful?
Using SQL Data CompareSQL Data Compare
- Logging and log files
- Internal Connection Fatal Error in versions 4 and 5
- NULL textptr passed to UPDATETEXT function when running synchronization
- How much free hard disk space is required?
- Comparing the data of two tables in the same database
- Suggestions to combat comparison and synchronization performance issues
- SQL comparison and synchronization automation capabilities
- SqlNullValueException occurring in synchronization wizard
- SQL Data Compare command-line XML argument file examples
- Using Windows authentication logons between domains
- Using a filter on a column on related (joined) tables
- Determining minimum database permissions for SQL Data Compare
- Tables with compound keys may not be mapped automatically
- Best practices for synchronizing data
- Cleaning up a SQL script after SQL Compare or SQL Data Compare
- Troubleshooting System.OutOfMemoryException during comparison
- Exception thrown by db reader 1
- Reseed applying "incorrect" identity values
- Running migration scripts using SqlCmd.exe
- This SQL Server has been optimized for x concurrent queries.
- SQL Data Compare showing differences in 2 identical databases
- How to force SQL Compare and SQL Data Compare to use an Encrypted Connection
- Improving the performance of SQL Data Compare
- Logging and log files
- Case-sensitive comparisons
- Tables or views that could not be compared
all SQL products
- Compatibility of Red Gate tools in 64-bit environments
- Application has encountered an error and needs to close
- Error message after installing SQL Toolbelt - The description for Event ID ( 1 ) in Source ( nview_info ) cannot be found.
- Changing the temporary directory used by the installer
- Toolbelt Installer "hanging" while "scanning volumes"
- Login failing with "trusted SQL Server connection" error when using RunAs
all products
- Some Red Gate products identified as containing a trojan by Anti-Virus software
- Activation may fail with Unknown Error -1
- Product uses web help although a CHM file is available locally
- Argument exception resulting from missing environment variable
- Check for updates may fail when used through proxies
- 'Unidentified Publisher' error when repairing or uninstalling
- Licensing activates product as standard edition
- Moving Red Gate software products to another machine
- Red Gate tools log locations
- The application UI opening slowly when there is no internet access
SQL Data Compare
- Activating your products
- Activating your products
- Getting help offline
- Getting better performance out of SQL Data Compare
- Release notes - version 10.xx
- SQL Data Compare release notes - version 7.xx
- SQL Data Compare release notes - version 8xx
- SQL Data Compare release notes - version 9.xx
all SQL products
all products
- Red Gate product acknowledgements
- Activating your products
- Activating your products
- Red Gate bundle history
- Check for updates
- Troubleshooting Check for Updates errors
- Current versions
- Deactivating your products
- Installing Red Gate products from the .msi file
- Requesting additional activations
- Serial numbers for bundles
- Reactivating using a different serial number
- Extending your trial
- Finding your serial numbers
- Moving a serial number from one computer to another
- No response received for manual activation
- Licensing and activation resources
- Licensing and activation resources
- Troubleshooting licensing and activation errors
- Licensing and activation FAQs
- Red Gate tools log file locations
- Download old versions of products
- Download product prerequisites & utilities
- Support & upgrades
- Upgrading your software
- Upgrading FAQs
