Ahmad Yaseen

Compression and decompression functions in SQL Server 2016

June 2, 2017 by

The concept of data compression is not a new on for SQL Server Database Administrators , as it is was introduced the first time in SQL Server 2008. In that SQL Server version, you were able to configure the compression at the row and page levels on the table, index, indexed view or the partition. The row and page level compression is not the best choice in all cases, as it does not work well on the Binary Large Objects (BLOB) datatypes, such as the videos, images and text documents.

Read more »
Koen Verbeeck

Analysis Services (SSAS) Multidimensional Design Tips – Creating Dimensions

June 1, 2017 by

In the previous article, Analysis Services (SSAS) Multidimensional Design Tips – Data Source View and Cubes, we discussed best practices for SSAS Multidimensional cubes and data source views. In this article, we continue the series with design tips for creating dimensions as the subject. As with the previous article, most tips are suited for SSAS 2008 (most likely 2005 as well) to 2016 and later versions. Analysis Services Tabular is not covered in this article.

Read more »
Samir Behara

Microsoft Build Conference 2017 – Recap for SQL Developers

May 29, 2017 by

The annual developer Microsoft Build Conference was held at the Washington State Conference Center in Seattle during May 10-12, 2017. The event had over 5,000 attendees and received a lot of love from the technical community. There were a number of announcements made during this 3-day conference, and in this article I will recap my learnings from a SQL Developer perspective. In the Data Platform, there were a number of new innovations, products and capabilities announced and a lot of emphasis was on using data to fundamentally transform your business. There was focus around serving Artificial Intelligence with Data, which seemed to me to be the future of Data Platform.

Read more »
Susantha Bathige

Understanding Skewed Data in SQL Server

May 22, 2017 by

Introduction

I recently did some research to analyze skewed data distribution in SQL Server. This article is the outcome of my analysis to share with SQL Server community.

SQL Server understands its data distribution using statistics. The SQL Server query optimizer then uses the statistics to calculate estimated row counts when executing the queries submitted by users. The accuracy of estimated row count is crucial to get optimal execution plans. The SQL Server query optimizer is a complex mathematical component and it does a decent job to create better execution plans during a very short period of time.

Read more »
David Alcock

Monitoring SQL Server with Dynamic Management Objects – Requests

May 17, 2017 by

In my last post, Monitoring SQL Server with dynamic management objects – Sessions and connections, I introduced the concept of using T-SQL queries to monitor SQL Server using Dynamic Management Views. The article demonstrated how we can use two views, namely sys.dm_exec_sessions and sys.dm_exec_connections to view activity on our instance of SQL Server and we achieved this by utilising some of the functionality available to us within T-SQL like joins, aliases and functions, all of which helped us develop a query to return monitoring information to us.

Read more »
Gerald Britton

Discovering database specific information using built-in functions and dynamic management views (DMVs)

May 15, 2017 by

Introduction

In the last two articles on dynamic management views in SQL Server, Discovering SQL server instance information using system views and Discovering more SQL Server information using the built-in dynamic management views (DMVs), we used DMVs to discover a fair bit of information about the SQL Server instance we’re connected to. In this article, we’ll begin diving in to database specifics. There is a lot of territory to cover! We’ll also use several of the built-in functions that come with SQL Server.

Read more »
David Alcock

Monitoring SQL Server with Dynamic Management Objects – Sessions and connections

May 12, 2017 by

A fundamental task of Database Administrators is monitoring SQL Server performance. Whilst SQL Server does give us a user interface inside management studio that enables us to view current activity (in the rather aptly named Activity Monitor) this article is going to focus on querying Dynamic Management Objects with T-SQL to return various pieces of useful process information that we can use to monitor server usage.

Read more »
Prashanth Jayaram

Installation of SQL Server vNext CTP on Linux Distribution CentOS 7

May 10, 2017 by

It was a paradigm shift in December 2016, when Microsoft made their SQL Server database available for Linux; it was the first time in history that Microsoft ever designed SQL Server to run on a non-Windows operating system. SQL Server vNext was released for public preview so the user community could test and deploy SQL Server on a Linux operating system. Microsoft took a major step in diversifying the database technology into the non-windows platform for the first time.

Read more »
Sifiso W. Ndlovu

How to Avoid Package Design Flaws When Sourcing Data From Flat Files

May 10, 2017 by

As developers of SQL Server Integrations Services (SSIS) solutions, we have more than likely configured Flat File Connections as sources in our Data Flow Tasks. Whilst any unforeseen changes to the structure and formatting of flat files will invariably cause SSIS packages to fail, as developers we can still do a lot in reducing unnecessary SSIS package failures relating to data coming out of flat files. In this article, we offer recommended development practices to some flat file source errors that occur as a result of poor SSIS development practices.

Read more »
Marko Zivkovic
C:\Users\Marko\AppData\Local\Microsoft\Windows\INetCache\Content.Word\10.png

How to connect and use Microsoft SQL Server Express LocalDB

May 9, 2017 by

Microsoft SQL Server Express LocalDB is intended for developers, it is very easy to install and doesn’t require any complex configuration task to create an instance or to use the database. The Introduction on the installation of Local DB be found on “How to install Microsoft SQL Server Express LocalDB” article.

This article will show different ways of connecting to LocalDB and how to create and use an instance of LocalDB.

Read more »