T-SQL

External Article

Parameterized Queries

  • Article

Previous T-SQL best practices articles have discussed different coding styles that led to slow and fast query executions, and ways to minimize cached plans. This article will be an extension on those concepts, focusing on how the SQL Server optimizer tries to parameterize a query if it can, as well as how you can build your own parameterized query.

2009-09-03

5,866 reads

External Article

Getting rid of SQL Code

  • Article

Joe becomes intrigued by the way that experts make errors in any area of technology, and suggests that the problem is more that of mindsets than lack of knowledge. He illustrates the point with SQL Development by means of the "Britney Spears, Automobiles and Squids" table, and the tangled Stored procedure, and shows ways of getting rid of both procedural and non-procedural code by adopting a different programming mindset.

2009-09-03

5,983 reads

External Article

Building Code that Promotes Plan Re-usage

  • Article

This article, the third in the T-SQL Best Practices series, discusses how to write your code to promote cached plan re-usage. Understanding how white space and comments impact whether a plan is cached or an existing plan is re-used can help you minimize the number of plans your application is caching.

2009-08-31

3,815 reads

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BIT_COUNT I

By Steve Jones - SSC Editor

Comments posted to this topic are about the item BIT_COUNT I

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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
37
What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 3;

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