Interview Question of the Week #016 – How to Take Database Offline

April 19, 2015

SQL, SQL Interview Questions and Answers, SQL Server, SQL Tips and Tricks

Here is the question, I received in the recent conference where I was presenting on Database Technology.

Question: What does it mean by Taking Database Offline and How to do it?

Answer: Taking database offline means, it will be no more available for database operations. Here are is how you can take your database offline.

-- Take the Database Offline
ALTER DATABASE [myDB] SET OFFLINE WITH
ROLLBACK IMMEDIATE
GO

If you have previously taken database offline, you can once again take it online by running the following command:

-- Take the Database Online
ALTER DATABASE [myDB] SET ONLINE
GO

You can read more about it in following blogs:

Reference: Pinal Dave (https://blog.sqlauthority.com)

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2 Comments. Leave new

Jabran
July 7, 2015 8:18 pm
Thanks Pinal! Is there a DDL trigger we can use to prevent this from being run inadvertantly?
Reply
- Pinal Dave
  July 14, 2015 12:47 pm
  I think that should be possible. Have you tried?
  Reply

Leave a ReplyCancel reply

Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 22 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 14 SQL Server database books and 88 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at pinal@sqlauthority.com.

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).

Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.

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