DMV

Technical Article

Finding the Worst Performing T-SQL Statements on an Instance

  • Article

Greg Larsen introduces some Dynamic Management Views (DMVs) and Dynamic Management Functions (DMFs) to help monitor your application's T-SQL performance. In addition, he provides a Stored Procedure that utilizes the DMVs and DMFs to produce a report that quickly identifies poorly performing T-SQL statements.

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2009-03-02

5,852 reads

External Article

SQL Server System Configuration Values

  • Article

Often times we need to review the SQL Server instance configuration values while troubleshooting performance problems. What alternatives are available to capture this information? With all of the new views in SQL Server 2005, is one available with the configuration values, a description and the list of possible values?

2008-08-05

3,958 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