For a data load, which is faster: a regular table or temp table? My client asked, and I answered with proof and a working demo you can run yourself.
SQL SERVER – Brief Note About RESOURCE_SEMAPHORE_QUERY_COMPILE Wait Type Resource
Today we will see Brief Note About RESOURCE_SEMAPHORE_QUERY_COMPILE Wait Type resource. I wrote a blog post about Enable Lock Pages in Memory LPIM.
NonParallelPlanReason: Why a Query Refuses to Go Parallel
Read NonParallelPlanReason in actual and cached plans, then check MAXDOP, scalar functions, table variables, and query cost.
Counting Locks per Session With sys.dm_tran_locks
Count locks per session by resource and mode, connect open transactions, and recognize escalation while keeping snapshot limits clear.
SQL SERVER – 5 Important Steps When Query Runs Slow Occasionally
This was a very interesting situation and at the end of we had found the culprit for the slow query and resolved it. Today we will discuss the experience.
SQL SERVER – Generate In-Memory OLTP Migration Checklists – SSMS
One of the customers of Comprehensive Database Performance Health Check asked me if I can help them analysis their database for In-Memory OLTP Migration.
SQL SERVER – T-SQL Script to Identify TOP 10 Parallel Running Queries
Identify the top parallel SQL Server requests with live DOP, worker tasks, query text, and plans before changing server settings.