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How to configure your Availability Group listener to ASP.NET

SQL Server’s availability group Always On feature is great to have features for your Database. Anytime one of your database nodes goes down, your secondary replica will automatically take over. After a failover, your secondary cluster node becomes the primary cluster. Now the question arises, “Do I need to configure my APP server connectionstring each time I face a failover cluster?”. The answer is NO, you don’t have to configure your app server connectionstring every time. Default ConnectionString By default, your App server connectionstring looks something like this – <connectionStrings> <add name="ConnStringDb1" connectionString="Data Source=localhost;Initial Catalog=YourDataBaseName;Integrated Security=True;" providerName="System.Data.SqlClient" /> </connectionStrings> ConnectionString for Failover Partner You can manually specify the failover partner in your connectionstring like this <connectionStrings> <a...

SQL Schema Compare with Visual Studio (A complete Guide)

Introduction When you're working on your Dev Database, an urgent issue comes along, and you instantly solve it by changing Scheme in the Staging Database or Production Database :3, few more these type of patching and you're completely out of sync! A lot of paid alternatives are there like SQL Data Compare by RedGate, but my first choice is Visual Studio's SQL Data Tools. In the following article, I tried to image-describe the steps for SQL Data Tool. Like I said before, there are lots of handly DBAtools out there to compare Schema between two DB Sources. I would like to discuss how you can compare two SQL Server DB with Visual Studio. Make sure you have SQL Server Data tools checked while installing Visual Studio.

SQL Insider 01 : An Anatomy of SELECT

Introduction When we write queries, we tend to think about the internals very little. In the new series of SQL Insider, I shall try to demonstrate what your SQL Server has to go through when you write a specific query, more specifically a specific operator. In the series, we shall try to cover all the important operators in SQL. Our today's SQL participant in SELECT. SELECT With the SELECT query, we can select one, some, or all the columns of a SQL table. The typical syntax for SELECT is like this SELECT * FROM Sales.SalesOrderDetail SELECT sod.OrderQty, sod.UnitPrice FROM Sales.SalesOrderDetail sod Please note that we will not be dealing with WHERE clause in today's episode. Database We will be using AdventureWorks2019 Database for the demonstration Important Configuration We will be setting STATISTICS IO ON like this - SET STATISTICS IO ON; SET STATISTICS IO ON ; We will turn on Actual Execution Plan to examine the query SQL Insider Let's sta...

How to deal with Slow SQL Server due to Autogrowth issue

Why you should not stick to SQL Server’s default Initial file size and autogrowth We hear a lot of these statements : My SQL Server is running slow My Production DB was fine when we started, But it is staggeringly slow now My Business end users are frustrated to wait too long Well, there are lots of reasons why your SQL Server might be slow. Setting the Autogrowth option to default is definitely one of the vital ones which we seem to ignore most of the time. Slow SQL Server and Tortoise SQL Server provides you with some default settings for autogrowth when you install it for the first time. These default cases are defined with increment by 8MB or by 10%. You need to change it to suit your own needs. For Small application, this default value might work but as soon as your system grows, you feel the impact of it more often. What Happens SQL Server Files needs more space SQL Server Requests the Server PC for more space The Server PC takes the request and asks the SQL request...

Maxdop and Cost theshold for parallelism SQL Server

Maxdop Maxdop stands for max degree for parallelism. Let's say, the maxdop is set to 4, it means during parallel plan execution, SQL server is going to use 4 processors. If you set your Maxdop settings to 0, it means SQL server is going to use as many processors it needs to complete your request.

6 Letters for SQL Disaster Emergencies : RPO and RTO

SQL Data Tools - Compare Data

Compare Data between two tables SQL Server Database with the same schema architecture can differ in different environments like Dev, Staging, and Production, especially in configuration tables. Let's see how we can easily sync the data in two different tables.

SQL Server Performance : OR vs UNION ALL

When writing queries, we seem to care less about the performance issue at first. Our first goal is to make the output right. When we get the correct output, we then move on to the next phase we call performance tuning. Today we will try to understand what happens when you write OR in your query. We will do the same thing with UNION ALL and try to understand which one seems to perform better.

SQL Server Pain Relief

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