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Dynamic Data Masking in SQL Server 2016

Microsoft has introduced an impressive new feature in SQL Server 2016 called Dynamic Data Masking (DDM). Dynamic Data Masking allows a developer or administrator to decide how much of the
sensitive data to reveal with minimal impact on the application layer. This feature also helps to simplify the design and coding of security in your […]

By |January 5th, 2017|Categories: SQL Server||0 Comments

Trace Flag 634 – Disable Background Columnstore Compression

Hi Friends,

In Columnstore Technology, we knows that Column data stores in segments and segments groups together to form the rowgroup. One of the main reason of using Columnstore technology is compression of rowgroups. By default, SQL Server perform compression of closed delta stores. This tasks is done by tuple mover. Which invokes after a […]

SQL Server 2014 – SELECT INTO Statement

Hi Friends,

Microsoft introduced so many new features and improvements with SQL Server 2014. In addition to these features, one of the improvement provided in SQL Server 2014 is about SELECT INTO statement. The SELECT INTO  generally used to copy the data from one table and inserts that data into a new table.

Before SQL Server […]

Setting SQL Server Start-up Parameters across Multiple Instances

Hello Geeks,

This is the first blog of the part of blogs set I am going to write for next few months. I have been working on a centralized approach for Database Administration. I know this has been mostly the case for bigger organisations. This blog series will target DBAs who are finding difficult to […]

Resource Governor to Control Physical IO

Hi Friends,
Microsoft introduced so many new features and improvements with SQL Server 2014. These features make the life of DBA easier. In addition to these features, One of the improvement provided in SQL Server 2014 is about Resource Governor. Resource Governor is a well-known feature of the SQL Server world to manage the system resource consumption. […]

Sub Query behaviour looks like a bug

While debugging one procedure I came across below Scenario where a sub-query was returning all records from outer query.

Initially I thought it is a bug in SQL server. As COL1 column is not part of Table2 , it should fail binding stage and throw error. But it returned all 20 records from Table1. Though […]

AWS RDS for SQL Server – Cheat Sheet

Hello Friends!

Back to you again with my all together new pick, Amazon Relation Database Service. Ah! interest, some of you might be wondering is this topic has nothing to do with SQL Server. Yes / NO ?

Working with RDS for few years and most of cases got to know from many of beginners or intermediate […]

By |November 5th, 2016|Categories: SQL Server||0 Comments

SQL Server – Join Operation

In this blog we’ll find how SQL Server works when we do join operation. SQL Server optimizer chooses one of the below physical operator to perform logical join operation.

Hash Match
Merge Join
Nested Loop Join

As far as performance is concern let me tell you, we can’t say which one will best.Each operator has its own advantages […]

SQL Server 2016 – Batch Mode Processing with Serial Plan

Hello Friends,

There are lots of features and improvements announced by Microsoft in SQL Server 2016, one of them is providing batch mode processing with 900 rows batch size. SQL Server 2016 uses batch mode processing even if the execution plan is a serial plan which was not possible with previous versions. Due to this […]

Don’t use ISDATE() function to check valid Date

I got the below email from one of my teammate on ISDATE() function.

Thanks to him for asking me the question. I do not have any idea on this behaviour of  sql server. I gone through the MSDN documentation and  got to  know, why SQL Server behaves like this.

select ISDATE(’08/16/013′) returns true because here it […]

By |October 11th, 2016|Categories: SQL Server, Transact-SQL|Tags: , , , |0 Comments
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