Recently a good friend of mine asked me question whether is there any performance benefit in filtering the data out in subqueries, and then joining them. Well, answer
Hi Friends. If you are wondering if we should check [context_switches] counter for SQL Server Queries while performance tuning, then here is the official verdict from Paul Randal.
Hi Friends, Ever wanted to check heartbeat of SQL Server. It is very common activity for a SQL Server user to check CPU, SQL Memory Utilization, Available Memory
I often see DBAs/developer struggling to find what’s wrong with query. The first step in troubleshooting queries is finding out information like batch text, query text, batch execution
Hi Friends, I often work on Performance Issues, and I found that developers use RECOMPILE option without even understanding it thoroughly. Instead of resolving the performance issue by
From past few weeks, I have been taking interview for Sr. SQL DBA position in my team. What I found is, even candidates saying that they have expertise
There are many tools in market that can help you troubleshoot in specific situations. My personal favorite for finding out issue with SQL Server is SQL-Server-First-Responder-Kit created by
Today, I was working with one user to troubleshoot their query timeout issues. Analyzing wait stats on server, I found ‘LCK_M_X’ wait to be most prominent wait on
Hi Friends, in my previous blog post Log all Activities using sp_WhoIsActive, I shared how easy it is to log all sql server sessions using sp_whoIsActive and SQL
I often receive the question – what is the best way to find issues when client/user complaints of deadlock issues? Msg 1205, Level 13, State 51, Line 10
