Learn ASP.NET Core 3.0 : MVC, Razor Pages, Web API, Entity Framework Core, and Blazor.
Microsoft's official documentation can be found here. Looking for professional online training courses? Next weekend batches are starting in November 2019. More details here.

Fetching Random Rows From SQL Se

Tip: Fetching Random Rows From SQL Server

Recently I needed to fetch random rows from a SQL server table. If you have an integer column then using RAND() function goes well. However in my case there was no number column. In such cases you can use the following query:

SELECT TOP <n> <column list> 
FROM <table> 
WHERE <criteria> 
ORDER BY NEWID()

The key is the use of NEWID() function that returns a GUID. An example query would look something like this:

SELECT TOP 10 * 
FROM Employees
ORDER BY NEWID()

This way is also useful for selecting data for testing purposes.


Bipin Joshi is an independent software consultant, trainer, author, yoga mentor, and meditation teacher. He has been programming, meditating, and teaching for 24+ years. He conducts instructor-led online training courses in ASP.NET family of technologies for individuals and small groups. He is a published author and has authored or co-authored books for Apress and Wrox press. Having embraced the Yoga way of life he also teaches Ajapa Yoga to interested individuals. To know more about him click here.

Get article updates : Facebook  Twitter  LinkedIn

Posted On : 23 July 2008


Tags : ADO.NET Data Access SQL Server


Subscribe to our newsletter

Get monthly email updates about new articles, tutorials, code samples, and how-tos getting added to our knowledge base.

  

Receive Weekly Updates