What is Heap? When table data has no logical order and no clustered index, SQL Server stores it as a Heap Structure. I explain pages and extents too.
SQL SERVER – 2005 – List All Column With Identity Key In Specific Database
Question I received in Email : How to list all the columns in the database which are used as identity key in my database?
SQL SERVER – Introduction to sys.dm_exec_query_optimizer_info
While browsing Books Online I found sys.dm_exec_query_optimizer_info, which returns statistics about the query optimizer to help you tune a workload.
SQL SERVER – 2005 – Find Index Fragmentation Details – Slow Index Performance
A slow index turned out to be heavily fragmented. My quick script uses sys.dm_db_index_physical_stats to show index fragmentation details for every index.
Reading SQL Server Error Messages Carefully
Reading SQL Server error messages carefully means using number, severity, state, and line to narrow the cause before searching.
SQL SERVER – 2005 – Find Highest / Most Used Stored Procedure
Which stored procedure runs most often? My small SQL Server 2005 script finds the most used stored procedure, with execution count, worker time and calls per second.
SQL SERVER – Introduction to Live Lock – What is Live Lock?
What is Live Lock in SQL Server? How a write request can keep waiting behind a stream of reads, how it differs from a deadlock and how to reduce it.