Steve Armistead

Get earliest and latest date values in a database

Query the earliest and latest date values found in all datetime columns in the current database.

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2016-07-12 (first published: 2016-06-21)

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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;