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SQL Server 2016 – New Columns in sys.dm_exec_query_stats

Hello Friends,

There are lots of features and improvements announced by Microsoft in SQL Server 2016, one of them is adding new columns in sys.dm_exec_query_stats. These new columns capture information about threads and memory. First, I’ll show you the new added columns for collecting threads and Degree of parallelism level information.

Here total_dop represent the total […]

Row Level Security in SQL Server 2016

Row Level Security in SQL Server 2016 – Allow access to Subset of Records.

There might be requirement to provide security at the record or row level, you will able to do this Row Level Security feature that is introduced with newer version of SQL Server i.e.; SQL Server 2016. In this post, I […]

By |September 20th, 2016|Categories: SQL Server||0 Comments

SQL Sever 2016 – DBCC CHECKDB WITH MAXDOP

Hello Friends, There are lots of feature and improvements announced by Microsoft in SQL Server 2016, one of them is restricting the number of processors for DBCC CHECKDB. We know that MAXDOP setting is generally taken care by Instance level setting ‘MAX Degree of Parallelism’ under advanced tab of server property. I’ll show you the […]

SQL Server Always ON and Change Data Capture: Friends or Foes?

I talked about Always ON and Change Data Capture in one of the Open Talks at recently concluded SQLServerGeeks Annual summit – 2016. The topic of discussion was Always ON and Change Data Capture: Friends or Foes? I thought its worth a write as well because this combination is very less talked about.

Let me […]

By |September 16th, 2016|Categories: SQL Server||2 Comments

Read-Write Concurrency in SQL Server Analysis Services

Hello Friends and Geeks,

I write this blog when the tallest Ganesh of Hyderabad is on the way for Immersion.

Coming to the topic for this post

Most of us know, how read/write concurrency and locking works with SQL Server Database Engine.

Ever wondered what would be the locking pattern for Processing and Querying concurrency for SQL Server Analysis Services (SSAS)

The […]

By |September 15th, 2016|Categories: SQL Server||0 Comments

SQL Server 2016 – Query Time Based Data on Temporal Table

Hello Friends,

In my previous blog posts, we have seen multiple ways for the creation of temporal tables and DML operation impact. Today we will have a look at Query Time Based Data on Temporal Table. First, let me create the table and then I’ll perform some DML operations, so that can query the data.

Now […]

DBCC CLONEDATABASE – Another DBCC command in the List

Hello Friends,

As the part of SQL Server DBA world, we have used many DBCC commands in our workplace like DBCC CHECKDB(), DBCC TRACEON(), DBCC SQLPERF() etc. All these commands make DBA life easier and help us to troubleshooting issues, alerting etc. In the same row, with the announcement of SQL Server 2014 service pack […]

Index Usage Analysis on databases with AlwaysON Secondary Readable Replica

Hi Friends and Geeks,

I write this blog at a time when traffic in Hyderabad has come to a stand-still owing to incessant rains since morning today.

Coming to the topic of this blog-post, we know how important it is to identify unused indexes and rarely used non clustered indexes to reduce the IO foot print of […]

By |August 31st, 2016|Categories: SQL Server||0 Comments

SQL Server 2016 – SQL Server checkpoint

Hi Friends,  In today’s blog post we will learn about the importance of SQL Server checkpoint and changes in SQL Server 2016. I’ll start with some basics.

How SQL Server works?

To understand the checkpoint, it’s important to understand the working of SQL Server. Let’s say, I want to update a few records of a table in […]

How to resolve High Compilations/Second problem in SQL Server

Hi Friends and Geeks!

Sharing an experience on resolution of High Compilations/Second performance counter in SQL Server from one of my consulting assignments.

The threshold for Compilations/Second is mentioned as 10% of Batch Requests/Second by various MVPs and in our case it was around 40 to 50%

Investigation Process

Investigate for queries with same query_hash but multiple plan_handles using […]

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