SQL Server 2016 Maintenance Plan Enhancements

September 18, 2017 by

SQL Server Maintenance Plans is a SQL Server Management Studio built-in feature that helps in creating a workflow of variant database administration tasks, which can be run automatically using a predefined schedule or manually triggered by the user. SQL Server Maintenance Plans allow you to use typical database maintenance tasks or customize your own task […]

How to Capture Database(s) usage stats using sp_spaceused and PowerShell

September 11, 2017 by

Today’s businesses work with huge volumes of data. Sometimes, understanding the granularity of the data is helpful in data administration. Understanding the granularity poses unique challenges though and the database administrator needs to balance the key business and technical metrics of the environment. One of the key technical metrics is disk space estimation, which is […]

8 things to know about Azure Cosmos DB (formerly DocumentDB)

September 4, 2017 by

Introduction Azure Cosmos DB is a low-latency, high throughput, globally distributed, a multi-model database which can scale within minutes and offers 5 consistency options to let you decide how to deal with the CAP theorem. Azure Cosmos DB used to be known as Document DB, but since additional features were added it has now morphed […]

Hands on Full-Text Search in SQL Server

August 25, 2017 by

Introduction In most cases, we will use clustered and non-clustered indexes to help a query go faster, but these kinds of indexes have their own limitations and cannot be used for fast text lookup. For instance, a LIKE operator will lead SQL Server to scan the whole table in order to pick up values that […]

All about SQL Server spinlocks

August 23, 2017 by

As discussed in the article All about latches in SQL Server, spinlocks are also a special form of locks that SQL Server uses to protect data. Spinlocks are lightweight objects used by the SQL Server Operating System (SQLOS) to protect data structure access. To understand, properly, the difference between latches and spinlocks and why the […]

Analysis Services (SSAS) Tabular Models – Attributes and Measures

August 14, 2017 by

In this article, a demonstration of the tabular model will try to related multidimensional cube design to the path forward Microsoft is giving used s with new versions of Analysis Services. Even though the descriptive names are changing, the tabular model still accomplishes the centralized business rules multidimensional cubes gave the business intelligence world. This […]

How to analyze SQL Server database performance using T-SQL

July 10, 2017 by

The performance of a database is the most challenging and critical part of database optimization. The challenge every DBA faces is to identify the most resource-intensive databases. This article talks about the natively available features that can accomplish the task of getting the required details of the entire database at a granular level.

All about locking in SQL Server

June 16, 2017 by

Locking is essential to successful SQL Server transactions processing and it is designed to allow SQL Server to work seamlessly in a multi-user environment. Locking is the way that SQL Server manages transaction concurrency. Essentially, locks are in-memory structures which have owners, types, and the hash of the resource that it should protect. A lock as […]

Considerations for On-premises data in PowerBI

June 7, 2017 by

Whether you’ve been using PowerBI for a while or you’re just getting started with it, chances are you’ll want to source at least some of your data from on-premises systems. Be that SQL server databases, Oracle, SSAS etc. The same process even applies if you’re sourcing from AWS which I’ll go into in more detail […]

Understanding the Impact of NOLOCK and WITH NOLOCK Table Hints in SQL Server

June 6, 2017 by

Every once in a while, SQL Server database administrators find themselves in disagreements with their application developer counterparts – particularly when it comes to some of the latter’s Transact SQL (T-SQL) developmental practices. One of my first observations when I joined my current employer is that almost all T-SQL scripts written by application developers uses […]

What are SQL Server deadlocks and how to monitor them

May 19, 2017 by

Introduction As a DBA, I’ve been, more than, confronted with performance problems. Sometimes, poorly written code or lack of indexes will generate blocking conditions that we refer to as a“Deadlock”. Due to their nature and like any similar blocking situation, deadlocks can have a direct impact on user experience and the more they occur, the […]

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 […]