A client’s SQL Server 2008 R2 SP2 patch failed, and the setup logs showed Failed to connect to server, Error: 0x80070422. Here is how we traced and fixed it.
SQL SERVER – Extended Events to watch for using ColumnStore Index
Profiler can’t show how ColumnStore indexes work, so a DBA friend asked which extended events to watch. Here are my notes on the events worth tracking.
SQL SERVER – How Enable Transparent Database Encryption (TDE) for Database Mirroring?
hey incidentally wanted to enable Transparent Database Encryption (TDE) on their server and wanted me to guide on how to enable.
Interview Question of the Week #063 – How to Recompile Stored Procedure for Specific Table?
After a big data change in one table, we wanted fresh plans. Here is how to recompile stored procedure plans for a specific table, with a word of caution.
Msg 15559: Script Level Upgrade for master Failed
Msg 15559 says SQL Server cannot drop the ##MS_AgentSigningCertificate## certificate because a user is mapped to it. The upgrade script then fails with error 912 and the service will not start. Start the instance with trace flag 902, drop the mapped user and the upgrade can finish.
SQL SERVER – Introduction to SQL Azure Database Throttling
On-premises SQL Server queues extra requests, but Azure works differently. Here is an introduction to SQL Azure Database Throttling and what it means for you.
SQL SERVER 2016 – STRING_SPLIT Function Performance Comparison – Notes from the Field #118
Splitting strings once meant temp tables or CROSS APPLY. In Notes from the Field #118, Kathi Kellenberger compares STRING_SPLIT performance in SQL Server 2016.