Need to clear SQL Server memory caches on a production server you cannot restart? Three DBCC commands free up memory by cleaning the cache.
SQL SERVER – FIX – ERROR : 9004 An error occurred while processing the log for database. If possible, restore from backup. If a backup is not available, it might be necessary to rebuild the log.
Error 9004 means an error occurred while processing the log for database, so it will not attach. Here are the steps that worked for me, starting with emergency mode.
Splitting a Big Table Into Equal Key Ranges for Batch Work
Equal-width key ranges fail when ids have gaps. NTILE cuts by row count instead, so every worker gets a fair share of the table.
Change Service Broker Port: Drop and Recreate the Endpoint
Service Broker hit error 9692 because another application used its port. To change Service Broker port, drop the endpoint and create it again on a new port. Both scripts are here.
SQL Server – Fix – Error : 9692 The _MSG protocol transport cannot listen on port because it is in use by another process.
Error 9692 says the Service Broker transport cannot listen on port because another process uses it. Find that program with netstat, or move the port.
SQL SERVER – Introduction to Service Broker
Service Broker supports transactional asynchronous messaging within SQL Server. I separate queued work from the application that processes it.
Organising Notes You Have Already Written
Learn to organise notes around problems, useful search terms, and review dates so earlier SQL Server work becomes easy to find and trust.
Checking Which Accounts the SQL Server Services Run As
Inventory SQL Server services and their accounts, compare virtual and managed identities, and verify permissions after a change.
SQL SERVER – Readers Contribution to Site – Simple Example of Cursor
A reader wanted to join values from several rows into one record. Imran Mohammed answered with a simple example of cursor code in SQL Server 2005.
SQL SERVER – Deferred Name Resolution
Why can a stored procedure with a wrong table name be created, but not one with a wrong column name? Deferred Name Resolution explains it.