SQL Server DBA Interview Questions and Answers

I’m intentionally barring related fields, for example, business knowledge or testing and approval to keep this answer clean. You can leverage segregating indexes into another filegroup on a different disk or you can consider appropriate partitioning to improve its performance. We have to store this data as XML-based files, not in the MSDB database. Reporting services, Analysis Services, Management Studio, Integration services, Full text search, browser, etc.. This is a standard SQL Server DBA interview question asked at technical interviews. The four main types of DBCCs are Information Commands, Validation Commands, Maintenance Commands, and Miscellaneous Commands.

In the Server Properties, choose Database Settings, you should see the default fill factor value in the top section. You can change to a desired value there and click OK to save the changes. The other option of viewing and changing this value what is sql dba is using sp_configure. It is used to create roles, permissions, and referential integrity as well it is used to control access to database by securing it. It is used to create and modify the structure of database objects in database.

Why SQL server is better than other databases?

In this article also, I tried to answer each question in a very precise manner. A relational database management system is a program that lets you create, update, and administer a relational database. Most commercial RDBMS’s use the Structured Query Language to access the database, although SQL was invented after the development of the relational model and is not necessary for its use. Clustered indexes sort and store the data rows in the table or view based on their key values. There can be only one clustered index per table, because the data rows themselves can be sorted in only one order.

  • High-Performance Mode is to ensure that the Principal database run faster, by not waiting for the Mirrored database to commit the transactions.
  • We aim to bring you all the essentials to learn and master new technologies in the market with our articles, blogs, and videos.
  • Hotfixes are commonly developed and used by developers to rectify SQL database problems that may arise from time to time.
  • Stored Procedure can be executed with the help of keyword called RECOMPILE.
  • DML – Data Manipulation Language deals with the manipulation of data present in the database.
  • If you are looking for someone who can work with multiple versions, consider asking this question along with one that asks which version they prefer.

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures. This article will cover interview questions on the first 3 topics and the remaining 3 topics will be covered in the next article of this series. The three types of available recovery models include – Simple Recovery, Sull Recovery, and Bulked Log Recovery. Extents in an SQL server database are the basic unit of measuring space for indexes and tables in the database. 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 . Transactional Replication would useful when maintaining a copy of a transactional table such as sales order tables etc.

Q. What is database backup?

So utilize our SQL Server DBA Interview Questions and answers to grow in your career. There is a parcel of chances from many presumed organizations on the planet. The SQL Server DBA advertise is relied upon to develop to more than $5 billion by 2021, from just $180 million, as per SQL Server DBA industry gauges. In this way, despite everything you have the chance to push forward in your vocation in SQL Server DBA Development.

sql server dba interview questions

Tempdb –tempdb database will have temporary objects like local and global temporary tables and stored procedures as well. These data files are logically divided into Pages in sequence order. All reads and writes operations are performed at a page level so we can say actual data is stored in SQL Server on Pages inside these data files. The collection of 8 continuous Pages is known as Extents. All pages are organized into extents that are used to efficiently manage pages. These SQL Server DBA Interview Questions and answers for beginners and experts. The following questions and answers are List of frequently asked SQL Server DBA Interview Questions with answers by SQL DBA School.