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SQL Server management, tutorials, scripts, coding, programming and tips for database administrators


Monitor Query Performance Using Query Store in SQL Server 03/19/2018

The Query Store captures a history of queries, execution plans, and runtime statistics, which persist within SQL Server and can be reviewed later. Read on to learn more.

Controlling Access to Azure Cosmos DB 03/08/2018

Azure Cosmos DB offers features that facilitate data availability and resiliency. However, there is also a different, very important aspect of facilitating access to distributed data sources in the most optimal manner, which focuses on access control mechanisms. Read on to learn the specifics of this aspect, as it applies to Azure Cosmos DB.

How to Send a TDE Encrypted Backup to Someone Outside Your Organization 03/01/2018

Once you enable your database to be encrypted with Transparent Data Encryption (TDE), the physical database files, and the database backups are encrypted.  If your database and database backup are encrypted, then how can you send the encrypted backup to a person outside your organization?

What is the State of My Transparent Data Encrypted Database? 03/01/2018

When using Transparent Data Encryption, you might wonder “What is the state of my transparent data encrypted database?” Read on to learn the many different states that a transparent data encrypted database might go through.

Data Encryption Using Always Encrypted in SQL Server 02/19/2018

The key challenge for application developers is to build a foolproof system to ensure data security. This is not only more intense, but more complex these days, as many organizations are planning to move their applications to the cloud. Read on to learn more.

Azure Cosmos DB Partitioning 02/05/2018

One of the most important design decisions that must be made when planning deployment of Azure Cosmos DB involves logical partitioning of data that will populate target collections, graphs, or tables. Selecting the optimal partitioning model has both performance and pricing implications. In this article, we will explore the rationale behind these implications and review the partitioning options.

How to Enable Transparent Data Encryption 02/01/2018

By default, SQL Server does not encrypt data in a SQL Server database in an encrypted format. When SQL Server 2008 was introduced, Microsoft implemented Transparent Data Encryption (TDE). When TDE is enabled on a database SQL Server will encrypt the database as data is written to the disk. Read on to learn more...

How to Move a TDE Encryption Key to Another SQL Server Instance 02/01/2018

If you have a database backup of a Transparent Data Encryption (TDE) enabled database, the database backup will contain encrypted data. Because the database backup contains encrypted data you can’t just restore it to any instance. You can only restore the database backup to an instance that contains the same certificate used to originally encrypt the database.

How to Implement Dynamic Data Masking in Azure SQL Database and SQL Server 01/22/2018

Anoop Kumar shows you the SQL Commands (T-SQL) to secure PII/PHI data using the SQL Server Dynamic Data Masking (DDM) feature and explores DDM's built in functions to mask all critical data elements. DDM restricts unauthorized users from accessing critical data with no changes in the application.

Azure Cosmos DB Consistency Levels 01/04/2018

The majority of traditional database management systems are responsible for making sure that any changes to their data are consistently reflected in the results of subsequent queries. Azure Cosmos DB extends the range of consistency options by providing support for bounded-staleness, session, and consistent prefix models.

Has Your Database Been Backed up in the Last 24 Hours? 01/02/2018

As a DBA your #1 responsibility is to make sure that each of your SQL Server databases are backed up. This tip provides a couple of TSQL scripts that will identify the last backup of each database.

How to Change the Default Backup Directory 01/02/2018

When you install a SQL Server instance you have the opportunity to identify the default location for your instance database backups. Overtime you might decide you want to change the default location for database backups. This tip shows you two different ways to change the default location for your database backups.

Step by Step Guide to Migrate SQL Server Data to SQL Server 2017 12/21/2017

This step by step approach explains how to assess your SQL Server migration using DMA. Learn how to understand the behavior of your existing version and what changes need to be made to migrate to a newer version of SQL Server.

Implementing Azure SQL Database Virtual Network Service Endpoints and Rules 12/07/2017

In previous articles, we’ve described the main characteristics of two new features known as Virtual Network service endpoints and Azure SQL Database virtual network rules. In this article, we focus on the details of implementing this functionality.

How to Turn on Instant File Initialization 12/04/2017

Not having instant file initialization turned on slows down the process of adding pages to your database, because prior to allocating the data pages to your database, SQL Server needs to zero out the newly allocated pages. Read on to learn more...

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