Dallas DBAs

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Ad Hoc SQL Server Help

I just need a few hours of your time… We get a variation of this request a LOT. So now it’s time to do something about it! Ad Hoc...

2026-03-02

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SQL Server Migration Overview

It’s Not Just Backup / Restore At some point every company faces it: the SQL Server that’s been quietly running for years is due for retirement. Maybe the hardware...

2025-10-22

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SQL Server Alerts

Don’t Let Trouble Sneak Up on You   Most SQL Servers run quietly. Until they don’t. By the time someone notices an application outage or a failed backup, you’re...

2025-11-03 (first published: )

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SQL Server is Slow, part 3 of 4

In parts 1 and 2 of this series, we’ve gathered info and done the triage just like anyone in almost any industry does At this point you’ve: Defined what...

2025-10-27 (first published: )

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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;

See possible answers