Scripts

Technical Article

spilt function

Many a times we need to split a string into its indivisual words and return a array like the Split function of Visal Basic which accepts a delimeter. Here is a script which assumes the delimeter to be the space character and works in a similar method.

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2004-09-24 (first published: )

166 reads

Technical Article

Defragment all table indecies

To help maintain index quality, defragging of any given index is a good thing. This will defrag ALL indecies in the current DB. NOTE: Schedule for off-hours operations. For a massive re-write of indecies, change the remarking on "--IF @indid" lines to use reindex instead of just defragging.

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2004-09-21

591 reads

Technical Article

Use of regular expressions in TSQL -- version 2

This script creates 2 new system functions ****************************************** NEW: 1. functions will be case sensitive if database is 2. Replace all or only first occurence ****************************************** fn__regexp_test(@String,@Pattern) returns int execute the method test(@String) on the regular expressions @Pattern returns : 0 : no match 1 : match null : one of the parameters was null […]

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2004-09-21 (first published: )

530 reads

Technical Article

Process XML against XSL template and save output

Given SQL text (@sql_txt) that will return XML data, run that XML data against an XSL template (@xsl_file_nm), and save the output to the specified outputfile (@out_file_nm). If @xsl_file_nm is not specified, then output is just saved as XML.This script is very usefull, but not secure. One could easily overload any of the script input […]

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2004-09-17

321 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