That is, one Instance of SQL Server is running on each of the nodes always; when one of the nodes has a failure, both the Instances run on only one node until the failed node is brought up . The instance is then failed over back to its designated node. An Active-Passive cluster is a failover cluster configured in a way that only one cluster node is active at any given time. On SQL Server 2005, installing the SQL Server failover cluster is a single-step process whereas on SQL Server 2008 or above it is a multi-step process.

We record each training session and upload it after the session to our LMS which can be accessible to the students. World’s largest and fastest-growing companies such as Google, Facebook, Adobe have adopted SQL Server as their database. Get access to our Quiz from the LMS to scale your knowledge. Provides a set of self-paced videos to recap the subject whenever/wherever you need.

What is a Database Administrator?

There are ongoing debates about whether certifications give you an advantage in your job search. Most employees don’t have the certification as a requirement for the Database Administrator’s role.

• You need to like technology, be detail-oriented and learn quickly.
• This month it is hosted by Elizabeth Noble blog and twitter.
• Dbatools are the most important PowerShell scripts for SQL Server DBAs.
• While these are not essential for the operation of the database system, they provide value added services on top of the core database management system.
• You will also gain knowledge on how to configure SQL Server components.
• Certification programs are available for most of the popular DBMS platforms, and many organizations expect DBAs to be certified in the database systems they manage.

However, doing that creates a new database session, different from the one in which the code is executing. To avoid this, SQL Server provides some enhancements to the ADO.NET provider that allows the connection to be redirected to the same session which already hosts the running code. Such connections are called context connections and are set by setting context connection parameter to true in the connection string. SQL Server also provides several other enhancements to the ADO.NET API, including classes to work with tabular data or a single row of data as well as classes to work with internal metadata about the data stored in the database. It also provides access to the XML features in SQL Server, including XQuery support. These enhancements are also available in T-SQL Procedures in consequence of the introduction of the new XML Datatype .

Section 3. Managing Logins, Users, and Permissions

This is a generic question often asked by many interviewers. Explain what are the different SQL Server Versions you have worked on, what kind of administration of those instances has been done by you. Mixed-mode allows you to use both Windows Authentication and SQL Server Authentication to log into your SQL Server. It’s important to note that if you use Windows Authentication, you will not be able to log in. Beware though that re-computing the query statistics causes queries to be recompiled. This may or may not negate all performance gains you might have achieved by calling update statistics. In fact, it could have a negative impact on performance depending on the characteristics of the system.

The results are returned to the client via the SQL Server process. SQL Server 2019, released in 2019, adds Big Data Clusters, enhancements to the “Intelligent Database”, enhanced monitoring features, updated developer experience, and updates/enhancements for Linux based installations. Download my free First Responder Kit packed with useful scripts like sp_Blitz, sp_BlitzCache, and sp_BlitzIndex.

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Validation commands include commands that validate the database such as the ever-popular CHECKDB. what is sql dba Finally, miscellaneous commands are those that obviously don’t fit in the other three categories.

Administering a DBMS usually requires additional tools than those provided with the DBMS itself. The message type defines the data format used for the message.

As your dedicated SQL Server experts, we’ll help you get the most out of your data. No matter what your business needs, we believe in giving honest answers, fair prices, and sustainable solutions. Never skip a beat with intelligent SQL Server disaster recovery and high availability solutions. Give your SQL Server a fresh start, without dealing with downtime. Get full-time SQL Server support, without the full-time employees. From SQL Server 2016 onward, the product is supported on x64 processors only and must have 1.4 GHz processor as a minimum, 2.0 GHz or faster is recommended. Connect and share knowledge within a single location that is structured and easy to search.

Many start out as network or systems administrators who start working with the database by doing installs and patches, learning the basics and then gradually adding skills. Others begin as report writers or doing extract, transform, and load work. Regardless of their starting point, they show an affinity for data and databases as it comes naturally to them. It exposes keywords for the operations that can be performed on SQL Server, including creating and altering database schemas, entering and editing data in the database as well as monitoring and managing the server itself. Client applications that consume data or manage the server will leverage SQL Server functionality by sending T-SQL queries and statements which are then processed by the server and results returned to the client application. For this it exposes read-only tables from which server statistics can be read.