ByHariharan Rajendran

SAS Token for Azure Storage

Creating a Shared Access Signature for your azure storage is bit complex. Microsoft suggesting to use console application to generate the SAS (article here).

If you are not familiar with ADO.Net application then very difficult to get the SAS key.

To make it easy, Azure Storage Explorer providing the GUI based SAS generator.

Download the Azure Storage Explorer, here.

in storage explorer, add your azure storage account by using “Add Account” option.


Once you have configured then select your container and choose “Security”.


Select the options as per your wish and generate the signature.


ByHariharan Rajendran

[Step by Step] Export Azure SQL Database

Follow the below steps to export the database. This database can used again in azure SQL database with different server also in VM SQL Server or on-premise SQL Server.

Step 1 : As usual log in to your

Step 2: Select your database which you want to export.

Step 3: choose export option.


Step 4: Provide the Azure storage container where you want to store the backup file.


Step 5: Select OK. Finished. You have successfully back up your database.

Step 6: Verify the back up in your storage


Note: The extension of the back up file is not .bak as a typical format. You cannot restore this file in your SQL Server Management studio just like .bak restore.

ByHariharan Rajendran

Named SQL Server in Azure

There is no option to create a your own named server in Azure management portal.

While creating a SQL database, azure will create a SQL Server with random name. This is not a good practice in real time environment as we are maintaining the proper naming conventions.

We can create a  our own named SQL Server in

Create a new database and select the “Create a new Server” option to create your own named server.


ByHariharan Rajendran

Steps to Upgrade Azure SQL Server

Azure has released a new version of SQL Server V12.

If you are using V2 SQL Server then you can upgrade to V12. This upgrade option is available in Preview Portal.

Follow the below steps to upgrade your SQL Server

Step 1: Visit Preview Portal and open your SQL Server then select server version.


Step 2: select the “Upgrade this server” in right hand side window of your SQL Server


Step 3: New window will ask you to enter your SQL Server name


Step 4: Enter your SQL Server name and select “OK”. Upgrade process will be initiated.



Wait for sometime and your SQL Server will be upgraded to newer version V12.

To compare the feature with older and newer version, visit my previous article.

ByHariharan Rajendran

Azure SQL Server

Azure has released a new version of SQL Server which is named as V12. The previous version of SQL Server is V2.

If we create a SQL database using Quick create method in manage portal then there is no option to choose the latest version V12 server. This is possible when you select a custom create option.

Steps to choose latest version,

1. Choose the custom create option and fill the required details and select new server.


2. Select the check box to enable the latest version.


To know about the latest features in V12, visit here.

Check the preview portal where we can see the difference in features between V2 and V12.

Features in V2 & V12

image  image

ByHariharan Rajendran

SQL Server Management Studio Firewall Settings

We need to follow the below steps to connect the azure based SQL Server in SSMS

1. Add the client IP address in azure firewall

2. Use the azure SQL Server name with proper credentials.

The above steps should be carried out until SQL Server 2016 to access the SQL databases in SSMS.

If IP is not configured then SSMS will not allow to connect, it will through the below error message.



SQL Server 2016 CTP 3.3 has built in feature to add the IP in azure SQL Server firewall from SSMS itself.

Follow the below steps,

1. There is no IP configured in Azure SQL Server Firewall


2. Enter the server name and credentials and click connect. It will open a Azure account sign in window




3. Server will be connected and can access the databases. Client IP address added into firewall.


ByHariharan Rajendran

DTU in SQL Azure Database

DTU is called “Database Throughput Unit”. It is a unit of measure in SQL Database. It also represents the relative power of the database transaction.

It is an abstraction of,

1. CPU

2. Memory

3. Read

4. Write

We have different service tiers based on DTU.

Check the below URL to compare the DTUs in each tier

ByHariharan Rajendran

Steps to Create HDInsight Cluster in Azure

Step 1: Log into azure portal

Step 2: Click “Browse” and look for HDInsight Clusters which will have Hadoop icon.


Step 3: Click the HDInsight Clusters and “Add” a new cluster.


Step 4: Provide the cluster name and other details as like below and cluster type should be “Hadoop”.


Step 5: Cluster credentials are mandatory so define the credentials. In this section, you can enable remote desktop by selecting “YES”, need to provide remote desktop credentials.


Step 6: Datasource must be configured for cluster.


Step 7: Node pricing tiers is required to configure as like below.


Step 8: Click the create button when all the steps are filled and configured. HDInsight cluster will be created and deployed for your use.