Blog Post

Replication Error "memory mapped file read failed"

I was fighting an error that was very rare to appear. I originally put a post on a MS forum
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.sqlserver.replication&tid=57229124-0a5a-4ec3-9055-a06b7869b872&cat=&lang=&cr=&sloc=&p=1
The...

2008-07-02

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BIT_COUNT II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item BIT_COUNT II

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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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