SQL Data Compare
Latest version: 10.0
Knowledge Base
This SQL Server has been optimized for x concurrent queries.
Category: Troubleshooting & error messages
Date: 16 Jul 2009
Product: SQL Data Compare
When comparing and/or synchronizing, the following error may be returned by SQL Server:
"This SQL Server has been optimized for x concurrent queries. This limit has been exceeded by x queries and performance may be adversely affected."
This may make it seem as if SQL Compare or Data Compare is making many connections to the database, however, SQL Data Compare and SQL Compare will only make a single connection to each database it is comparing.
If you want to check to see exactly what connections are being made to SQL server, by Red Gate tools or other processes, you can check the current connections by running sp_who (see books online) in a query editor in the context of the master database. Using that, you should be able to see which connections are currently open and what is using them.
Document ID: KB200906000406 Keywords: SQL,Data,Compare,connections,concurrent,queries
Was this article helpful?
SQL 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

Using SQL Data Compare