2014-10-10
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T-SQL
2014-10-09
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2014-10-08
1,998 reads
2014-10-06
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2014-10-03
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2014-11-10 (first published: 2014-10-01)
1,357 reads
2014-10-01
2,037 reads
Filling In Missing Values Using the T-SQL Window Frame
Since SQL Server delivered the entire range of window functions, there has been far less justification for using the non-standard ex-Sybase 'Quirky Update' tricks to perform the many permutations of running totals in SQL Server. One of these related problems is the 'Data Smear'. Do window functions make this easier, and what is performance like? Dwain Camps investigates.
2014-10-01
11,294 reads
2014-09-30
1,946 reads
2014-09-29
2,016 reads
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Question of the Day
BIT_COUNT I
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers