Michael Coles


SQLServerCentral Article

SQL 2005 Symmetric Encryption

One of the more interesting new features with SQL Server 2005 is the native encryption built into the product. Expert SQL crpytographer, Michael Coles, brings us a look at the symmetric keys in SQL Server 2005 and how they can be used to encrypt data and be secured by a certificate.

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2007-08-24 (first published: )

54,591 reads

SQLServerCentral Article

Sic Semper NULL

The great debate over NULLs will probably never end. Should we use them in our databases? What meaning do they have? These are all
valid questions. In this article SQL Server expert Michael Coles takes a look at the problems that are inherent in eliminating NULLs completely from
a database.

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2007-04-10

5,991 reads

SQLServerCentral Article

SQL 2000 DBA Toolkit Part 4

In the final installment of his series, Michael Coles examines a few other functions in his SQL Server 2000 toolkit to help you with other functions, like reading a directory on your server. Read the series and send some feedback to make this THE premier toolset for SQL Server 2000 DBAs.

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2006-05-04

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SQLServerCentral Article

Sequential Ordering on SQL 2005

Many people have posed the question of how to generate sequential numbers for some report when the underlying data has no numbering system. The solutions have always been complicated derived or temporary tables and are difficult to implement. SQL Server 2005, however, brings us the ROW_NUMBER() function and author Michael Coles shows us how this can be used to easily add sequential numbering to your results.

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2006-02-14

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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;

See possible answers