SQL Server Articles


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SQL Server Join Nastiness Tamed: Finding Joy In The INNER LOOP

Microsoft SQL Server sometimes uses hash and merge joins when querying large tables when uncomplicated nested loop joins would result in better performance and less server impact. In many such cases, query times go from many milliseconds to many seconds because hash table joins require that large amounts of data be processed and temporarily stored, […]

Making the Move from Sybase to SQL Server

I was involved in a recent project to migrate a Sybase database to Microsoft SQL Server 2000. So the experience I gained by working on this project has led me to write this article to show Sybase database administrators (DBAs) and managers the steps that should be followed to migrate from Sybase databases to SQL Server 2000. Differences […]

How to Connect to SQL Server from Visual FoxPro

In Microsoft public newsgroups, I’ve noticed a recent increase in the number of questions that deal with how to connect from Visual Foxpro to SQL Server, and the problems related to making this connection. So I’ve decided to write this article  to cover such an important topic.There are two functions that can be used to […]

How Updates are Performed in SQL Server 6.5

SQL Server 6.5 can use two different methods to update records, depending on the circumstances. They include: Direct Update Deferred Update Each method affects performance in a different way, as we shall see in this article.A Direct Update includes three different methods of modification: In-place update On-page delete/insert Full delete/insert Think of these above three […]

Best SQL Server Performance Tuning Tips

This website offers hundreds of different ways to tune SQL Server for optimum performance. But as you read over the many tips, you might be asking yourself, which tips offer the most performance gains for the effort expended. As you can imagine, it is not always easy to know which tips might help boost your […]

Create Your Own SQL Server Job Management System

Having had the honor of working for quite a few companies that did not have the resources to buy any of the nice SQL Server toys that exist out there, or were willing to put an email  client on the servers, I have found myself spending a good deal of time each morning checking the […]

How to Identify and Delete Duplicate SQL Server Records

Recently, I was asked to help someone clean up their database after they had double loaded an import file. The problem they were having in identifying and deleting the duplicate information was the fact that a timestamp is applied to each row of data as it is inserted into the table. While the rest of […]

Track SP Changes by Automatically Saving Your SQL Server SP Text

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SQL Server Startup Parameters

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SQL Server Techniques for Creating a Web Reporting Page — Part 3

This article uses the table we created in Part 1, called CUBE. Data is usually normalized into columns. For example, suppose we have a table of appointments. The table consists of 2 columns, DATE and APPOINTMENT. A common request is to display the data in a monthly calendar format. That is “pivot” the columns into […]
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