Administration

Technical Article

Indexing Guide: The art and science of SQL Server indexing

  • Article

You can improve your SQL performance by using indexes. But you have to choose the proper indexes and make sure the ones you do choose fit into your business situation. In this indexing guide, you will find answers to common indexing questions, indexing dos and don'ts, and tricks for working with the Index Tuning Wizard to improve overall system performance for SQL Server 2000 servers. This is particularly useful for servers that need a boost before they are upgraded to SQL Server 2005.

2006-02-28

5,279 reads

Technical Article

SQL Server 2005 - Data Definition Language Triggers

  • Article

One of the many new features that have been added to SQL Server 2005 is DDL triggers. We use DML triggers in SQL Server 7.0 and 2000, which executes a bunch of SQL statements or procedures whenever an INSERT, UPDATE or DELETE statement is executed and limited to a table or view object.

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2006-02-08

2,440 reads

SQLServerCentral Article

Dynamic Management Objects

  • Article

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.

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2006-01-26

9,076 reads

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Question of the Day

ORDER BY alias

There is a table tmp_tab:

CREATE TABLE tmp_tab (
id int,
val int
);
INSERT INTO tmp_tab VALUES
(1, 1),
(2, NULL),
(3, 3),
(4, 4),
(5, 5);
You want to order the rows ids by the following expression:
    ISNULL(val, id) + 1
Which of the following queries produces the expected ordering and why? (Select all correct)

See possible answers