SQLServerCentral Article

Dynamic Management Objects

These are not the DMO bits you are thinking of from SQL Server 2000. SQL Server 2005 introduces a new way of digging into the inner workings of the server with both Dynamic Management Views and Dynamic Management Functions. Longtime SQL Server guru Christoffer Hedgate looks at these new ways of understanding your server.

External Article

Counting Parents and Children with Count Distinct

The aggregate functions in SQL Server (min, max, sum, count, average, etc.) are great tools for reporting and business analysis. But sometimes, you need to tweak them just a little bit to get exactly the results you need. For example, if your manager came to you and asked for a report on how many sales have been made to your clients and how large they were, would you know how to get the data you need efficiently? Mark ran into something like this recently and here's the approach he took to solve the problem.

Technical Article

SQL Server 2005 DB Snapshot: Imperfect Yet Useful?

Database Snapshot (DB Snapshot for short) is a new tool offered by SQL Server 2005. Database snapshots can be used to protect against user errors, by creating a "snapshot" of your data that you can refer to later if you need to recover data or database objects that were accidentally (or even intentionally) updated or dropped. While the feature is quite useful, it doesn’t provide a 100% guarantee against user errors.

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Question of the Day

How Long is a Long I/O?

In SQL Server 2025, a long I/O is recorded in the error log with message 833. How long much an I/O request be outstanding before this message is written to the log?

See possible answers