Rahul Sharma

Rahul Sharma is a senior database administrator for Manhattan Associates, Inc., and a columnist for databasejournal.com, dbazine.com and SQLServerCentral.com. He has a bachelors and a masters degree in engineering and has been working with Microsoft SQL Server since the release of SQL Server 6.5 and is currently working with both SQL Server 2000 and Oracle 9i. He is a Microsoft Certified Professional with more than six years of experience in database development and administration. He is published (Publishers: Addison Wesley) and his book's title is: Microsoft SQL Server 2000: A Guide to Enhancements and New Features (ISBN: 0201752832).

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Technical Article

Drop all Connections from a Database

On development servers, at times there is a need for dropping and renaming database(s). These scripts can be used for achieving these tasks. The usp_DropDB script will kill the connections to the database and then drop the database. It takes care of the space in the database name, if any and also makes sure that […]

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2001-08-08

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Question of the Day

BIT_COUNT II

In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data: 

UserID  UserPermissions
15
23
37
4       NULL
What is returned when I run this code: 
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 4;

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