Do your developers really understand how to prevent injection attacks? Or scarier still, how many know what an injection attack is? Chris has some great examples of how sql injection works and how to prevent it.
2004-02-02
17,577 reads
As Chris points out, in most applications these days you end up having to go with optimistic locking, which presents a few challenges. Chris works through the list of options. If you're building web/disconnected apps and need anything besides last update wins, this one is for you.
2003-12-19
9,510 reads
Most of us know what it is, or do we? Chris works on a good definition and along with that, gets into a good look at the problems denormalization creates and talks about a pretty common form of it - the indexed view.
2003-12-02
12,295 reads
Chris was kind enough to take some time to put this product through it's paces and ends up giving it a very good rating. Read the article to see a nice graphical walkthrough of how to use the product.
2003-10-13
6,081 reads
Chris does a follow up to his very popular article on clustered indexes. They seem simple, but in practice they are fairly complicated. Having a solid understanding of clustered indexes will definitely help you get the results you need.
2003-10-08
8,599 reads
Chris discusses some issues he had trying to use SQL dates from within Java. Interesting stuff and brings up the point that if you have dates stored in local time, having users in multiple time zones can be a large headache.
2003-09-17
12,514 reads
Chris discusses questions raised by his first article on clustered indexes. Few subjects more important to master than clustered indexes, this is good reading!
2003-08-12
9,999 reads
2003-07-08
6,885 reads
Quite a while back Andy wrote an article about why not using primary keys and clustered indexes was a worst practice. Chris weighs in this week with a great article that gives some more in depth info on clustered indexes and why he thinks they should be used on every table.
2003-03-30
18,838 reads
In this article new columnist Christoffer Hedgate offers his advice on what performs better, COUNT(*) or COUNT(column).
2002-09-23
17,630 reads
By Steve Jones
I recently started playing with the MCP Server for SQL Server, which is a...
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I have added a few indexes to one of my tables in SQL Server 2025:
ALTER TABLE dbo.CustomerContact
ADD CONSTRAINT PK_CustomerContact
PRIMARY KEY (CustomerID);
-- Create index on CustomerEmail
CREATE INDEX IX_CustomerContact_CustomerEmail
ON dbo.CustomerContact (CustomerEmail);
CREATE INDEX IX_CustomerContact_CustomerPhone
ON dbo.CustomerContact (phone);
I then do this to disable one index:
alter index IX_CustomerContact_CustomerPhone on dbo.CustomerContact disableI see this when I check the index status:
I decide to rebuild all indexes with this command:
ALTER INDEX ALL ON dbo.CustomerContact rebuildAfter I do this, what will I see for the index status? See possible answers