Scripts

Technical Article

Generating sequential numbers - the fast way

It is often necessary to generate a table with sequential numbers, up to a specified upper limit N. For small N, a simple INSERT in a WHILE loop will do. But, for large N, that solution becomes too slow. This script presents a different approach. It generates sequential numbers from the binary representation of N, […]

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2004-12-30 (first published: )

652 reads

Technical Article

Number of Weekdays between two dates - Set Based

Inspired by a post here at SQLServerCentral, I wrote this function to calculate the number of days between two dates that are weekdays. In order to achieve this I used a common SQL table that contains a sequence of number for 1 to X. This was used as an input to the datediff function, and […]

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2004-12-24 (first published: )

333 reads

Technical Article

Retrieving all indexes of the Database.

The Script outputs all the indexes in the Database.I have used the sp_helpIndex system stored procedure here to retrieve all the indexes available for the Table . This is extremely useful in identifying all the indexes in a database in a single query

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2004-12-22 (first published: )

359 reads

Technical Article

Update multiple rows (in a set) using a single SP

Here is another variation of processing multiple records with a single procedure call but allowing for set processing.The helper functions make use of the sequencetable pattern. These helper functions can be used to parse strings into records, so one gets a list, or simply return the nth field.There are two functions that will parse into […]

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2004-12-17 (first published: )

806 reads

Technical Article

Large auto-job-creation script for adding backups

This script creates a stored proc that was intended to run from a trigger on the master..sysdatabases for each database creation. Alas. It will create three jobs for each database you apply it to. First, it'll create a job to run a full backup each Sun, at 5am (see below). Those backups will be retained […]

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2004-12-16 (first published: )

394 reads

Technical Article

Auto Fix Orphaned Users

Add this procedure to the master database, it can then be executed from any DB to fix orphaned users (very useful when moving back to development). Using sp_msforeachdb with the proc allows you to resolve orphaned users in all databases in a single command: SP_MSFOREACHDB "USE ?; EXEC SP_AUTOFIX_USERS;"

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2004-12-15 (first published: )

2,924 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