Comparing the contents of two tables

I’ve been working on tuning a query for the last week and I’ve had to make several changes to the...

Continual Deployment of Visual Studio SqlProj

Unveil the inner workings of the esoteric build system...
As a data professional, I've never worked extensively with msbuild or other...

DBA Database scripts are on Github

It started with a tweet from Dusty

The second session I presented at the fantastic PowerShell Conference Europe was about using the...

SQL Server – Change in Identity() Property during transactions

Recently while working on a scenario I found that in case of transaction if you are doing insertion operation on...

AlwaysOn Availability Groups Synchronous Replica Readable Secondary Data Access Latency

With SQL Server AlwaysOn Availability Groups, when you configure a secondary in synchronous-commit mode for read-only access, there can be data access latency. If you make changes to your...

Cardinality Estimation – Table Variable Vs Temporary Table in SQL Serve

SQL Server creates and maintains statistics for temporary tables, which lead to better cardinality estimation and optimal execution plan generation. Table variables have no statistics, which can result in...

Extended Event Locks Lock Waits in SQL Server

When it comes to lock waits, one of the important information we need to know is which statement waited for locks and how long. This is possible with extended...

Extended Event Query Post Execution Showplan in SQL Server

Query Post Execution Showplan event is a very useful event to find problematic queries and execution plans based on CPU usage or duration while analyzing performance issues. It can...

Filtered Statistics in SQL Server

In SQL Server, Filtered Statistics can improve cardinality estimation, i.e. when joining lookup table, or while joining fact table and dimension table. For this reason, SQL Server supports the...

In-Memory OLTP Memory Optimized Table Variables Vs Disk Based Table Variable in SQL Server

Starting SQL Server 2014, it is possible to use memory optimized table variables. These are table variables declared using a table type which is memory optimized. Memory optimized table...