Scripts

Technical Article

Drop all Connections from a Database

On development servers, at times there is a need for dropping and renaming database(s). These scripts can be used for achieving these tasks. The usp_DropDB script will kill the connections to the database and then drop the database. It takes care of the space in the database name, if any and also makes sure that […]

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2001-08-08

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Technical Article

Kill All Users in A Given Database

This script will kill all users in a given database. Before disconnecting, it can optionally send the user a NET SEND Message giving them a warning to disconnect. To run, simply call it like usp_killusers 'dbname'. Make sure the @dbname parameter is not the master database.

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2001-08-08

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Technical Article

Quickly Enable/Disable Triggers and Constraints

When loading data, nothing can be more frustrating than having to deal with stubborn constraints and triggers. This is especially true when you know your data is fine but the constraints are too prohibitive for a mass initial load. Here's a technique I use to disable the constraints and triggers temporarily during a mass load. […]

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2001-08-08

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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