An upgrade failed: Script level upgrade for database ‘master’ failed because upgrade step msdb110_upgrade.sql encountered error 926. I explain the cause and the fix.
Collation Precedence: Which Collation Wins in a Comparison
Explain collation precedence with explicit and implicit labels, reproduce a conflicting join, and choose comparison rules.
How to Find Size of the Index for Tables? – Interview Question of the Week #198
How do you find the size of the index for tables? A client asked me during a Health Check, and this script lists schema, table, index and size in KB and MB.
SQL SERVER – Unable to Start Service SQLSERVERAGENT on Server (mscorlib)
After moving the SQLAgent.OUT path, a client saw: Unable to start service SQLSERVERAGENT on server (mscorlib). Here is one cause of this error and the fix.
SQL SERVER – You Are Not Logged on as the Database Owner or System Administrator
A developer creating a table in SSMS got a pop-up: You are not logged on as the database owner or system administrator. Here is what the message means.
SQL SERVER – XML Document Could Not be Created Because Server Memory is Low. Use sp_xml_removedocument to release XML documents
XML document could not be created, error 6624, on a server with 300 GB free. What OPENXML really costs, measured, and why XQuery is the fix.
SQL SERVER – Parallelism for Heap Scan
Two DBAs asked me if their table needed a clustered index. Our conversation during a Health Check turned into a lesson on parallelism for Heap Scan.