Scripts

Technical Article

proc to order xp_enumerrorlog

this is a quick stored procedure I put together when trying to find a log for a particular day (xp_enumerrorlogs returns the archive is as a varchar, so 1 is followed by 11, 12 etc rather than 2) sp_display_errorlogs with no parms returns output in archive id order. if the parm 'size' is passed in, […]

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2007-09-21

826 reads

Technical Article

A Simply way to implement Audit Trail in SQL 2005

In a recent project, I need to record audit trail for some tables (for Insert, Update and Delete).Using SQL 2005's XML datatype and the XML support it is very covenienet to use triggers to perform the audit trail requirement. I create one table (Table_Audit)  to hold all audit trial data. One stored procedure is created […]

(2)

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2007-09-20

3,331 reads

Technical Article

Delete constraints - SQL Server 2005

This script will DELETE ALL constraints within the database that you define and in the following order: Foreign Key, Primary Key and then Unique Key.CAUTION:This script does not print out the ALTER TABLE statements, it drop the constraints immediately, therefore backup your database before testing or using this script. I ran the script below and […]

(3)

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2007-09-19 (first published: )

4,103 reads

Technical Article

_Select Update

I made some modifications to D Simmon's original sp.  1. I added dynamic feature to query tables in other databases (not linked servers) from one sp. I know dynamic sql isn't preferable in most cases but this is the route I took for this.  2. I enabled table name to be sent with owner qualification […]

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2007-09-18 (first published: )

619 reads

Technical Article

Backup SQL Server Database with Move/Copy File

The following script performs log, differential or full backups of a single, or all databases on your SQL Server.  It then copies or moves the file(s) over to a network share drive.  It also removes old backups from both locations if needed.  Don't forget to set the local drive path and network share for each […]

(9)

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2007-09-14 (first published: )

19,186 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