Michael Coles


SQLServerCentral Article

Four Rules for NULLs

In SQL Server 2000 or any relational database, the concept of NULL can be both confusing and hazardess to your employment. Not understanding how to work with NULLs can lead to incorrect responses to queries and poor business decisions being made. New author Michael Coles brings us four rules that can help you work with NULL values in your tables.

(99)

You rated this post out of 5. Change rating

2008-03-28 (first published: )

94,956 reads

SQLServerCentral Article

Updated SQL Injection

SQL injection has been a hot topic the last couple years and there are some great articles at SQLServerCentral.com on this topic. Michael Coles brings us an updated look at this SQL Server security issue with some new examples you might not have previously thought.

(30)

You rated this post out of 5. Change rating

2008-03-21 (first published: )

85,120 reads

SQLServerCentral Article

NULL Versus NULL?

Dealing with NULL data is something that often confuses new SQL Server developers, but even experienced DBAs might not understand all the intricacies of NULL operations. In a follow up to his highly acclaimed Four Rules of Null article, Michael Coles brings us a few new
tricks with NULLs.

(81)

You rated this post out of 5. Change rating

2008-01-25 (first published: )

39,222 reads

SQLServerCentral Article

SQL 2005: Enter XML

SQL Server 2005 has greatly expanded the capabilities of SQL Server in many different areas. One of those that has matured greatly is the integration of XML data inside SQL Server. Longtime writer and guru Michael Coles brings us the first part of a two part series on XML ion SLQ Server 2005.

(3)

You rated this post out of 5. Change rating

2008-01-24 (first published: )

13,197 reads

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.

(16)

You rated this post out of 5. Change rating

2007-08-24 (first published: )

54,574 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.

(2)

You rated this post out of 5. Change rating

2007-04-10

5,984 reads

Blogs

TempDB Internals – What’s New (SQL Server 2016 to 2022)

By

I wrote about TempDB Internals and understand that Tempdb plays very important role on...

Blog a Day – Day 2: Generative AI, Multimodal Systems, and Agent AI

By

continuing from Day 1 where we covered the history of AI and GPT family,...

A Wellbeing Day at Redgate

By

It’s a day off for Redgate today. This is our annual wellbeing day, where...

Read the latest Blogs

Forums

adage acting funny

By stan

Hi, i know this is a shot in the dark.  i dont know what...

A Quick Restore

By Steve Jones - SSC Editor

Comments posted to this topic are about the item A Quick Restore

Guarding Against SQL Injection at the Database Layer (SQL Server)

By Terry Jago

Comments posted to this topic are about the item Guarding Against SQL Injection at...

Visit the forum

Question of the Day

A Quick Restore

While doing some testing of an application, I wanted to reset my environment after doing some testing with this code:

USE DNRTest

BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak'
GO
/*
Bunch of stuff tested here
*/RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACE
What happens if this runs, assuming the "bunch of stuff" isn't anything affecting the instance.

See possible answers