Scripts

Technical Article

Smart data archiving stored procedure

This stored procedure uses a series of input parametes to generate, and optionally execute a series of SQL commands to move production data to an archive table.  The procedure assumes that the production and archive tables will have the same structure.  The procedure uses the following input parameters:@SourceTable:  This is the name of the table […]

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2007-09-05 (first published: )

4,121 reads

Technical Article

Mirroring Job Switcher

I wrote this so that jobs associated with a mirrored database will run on the principal and not on the mirror.  Please send your comments on what implications I might be missing - I would appreciate that greatly.This procedure works in conjunction with a WMI alert you will setup in SQLSEVERAGENT -> Alerts ->Mirroring Status […]

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2007-09-04 (first published: )

479 reads

Technical Article

Clean up default constraints

The script scrapes out all default constraints (optional for particular column, table or script generation for the whole db) in SQL Server 2005 manner. Based on: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsqlpro2k/html/sql00a11.asp

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2007-09-03 (first published: )

605 reads

Technical Article

PARSENAME Enhancement

The ParseName function is very useful for getting parts out of a string of characters between delimiters. But a limitiation is that you only can get four parts out, and the function only accepts dots as delimiters.The function I have written below overcomes that limitations, and add a new feature to enable "from left" and […]

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2007-08-27 (first published: )

342 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