Most of my earnings come from my role as SQL Server Performance Tuning and Optimization consultant. Every single day I work with few customers so that I can maintain the quality of my work with each of them. As you can imagine, I face new challenges and learn new ways to tune SQL Server. In this blog post, we will discuss an error XML document could not be created because server memory is low. Use sp_xml_removedocument to release XML documents.
SQL SERVER – Parallelism for Heap Scan
Every consulting engagement is different and I enjoy interacting with different people while I am working with different experts. Earlier this week, here is what I heard during one of the Comprehensive Database Performance Health Check engagement about Parallelism for Heap Scan.
What is Read Ahead Read in SQL Server? – Interview Question of the Week #197
Question: What is Read Ahead Read in SQL Server?
Answer: This is SQL Server’s feature which brings data pages into the buffer cache.
SQL SERVER – Finding Compression Ratio of Backup
During the recent Comprehensive Database Performance Health Check, I was asked if there is any way to know compression ration of backup if we enable compressed backup settings in SQL Server.
SQL Authroity News – Optimizing Lazy Spool – PASS Blog
I will be presenting a day-long pre-conference at SQLPASS on the topic – 21 Essential Scripts: Jump-Start Performance Tuning for Accidental DBAs and regular session as well. Lots of people are asking me what I will be covering in the session, so I have decided to give sneak preview about it on the blog of PASS.
SQL SERVER – Reporting Services Not Starting After Maintenance Window
This is the issue faced on my test server and I found something interesting. In this blog, we would learn about one of the reasons why SQL Server Reporting Services (SSRS) couldn’t start after regular maintenance.
SQL SERVER – How to Get List of SQL Server Instances Installed on a Machine Via T-SQL?
Earlier last year, I had posted a very interesting blog post which still today gets quite a lots of interest is SQL SERVER – How to Get List of SQL Server Instances Installed on a Machine?. In the recent Comprehensive Database Performance Health Check, the client wanted to get this one done by T-SQL only. I had replied to them via email but never got around to blog about it here.
SQL SERVER – How to DROP Multiple Tables Using Single DROP Statement?
In my earlier post, SQL SERVER – How to DELETE Multiple Table Together Via SQL Server Management Studio (SSMS)? I showed you how to DROP Statement multiple tables together using a wizard in SQL Server Management Studio (SSMS).
SQL SERVER – DBCC CHECKDB Waiting for PREEMPTIVE_OS_DEVICEIOCONTROL
As you might already know that I am a SQL Server Performance Tuning Expert who also acts as a “on-demand consultant” for many organizations across the world who have performance tuning or any other issue related to SQL Server. Once I was working with one of my clients and their DBA asked a question. In this blog, we would learn about possible ways to handle a situation where DBCC CHECKDB is indefinitely waiting for PREEMPTIVE_OS_DEVICEIOCONTROL.
Do Index Reorganization Update Statistics? – Interview Question of the Week #196
Question: Do Index Reorganization Update Statistics?
Answer: No. Index Reorganization does not update Statistics of your database.