2022-10-24
604 reads
delete
Can you prevent deletes and inserts without a WHERE clause from running?
Erik writes a script to do what it says on the tin.
2018-01-01
4,692 reads
Differences between Delete and Truncate in SQL Server
Atul Gaikwad details the differences between DELETE and TRUNCATE, including how they vary in terms of being rolled back.
2016-05-18
4,518 reads
Hidden Tricks To SQL Server Table Cleanup
How to delete millions of rows with virtually no contention.
2015-09-04 (first published: 2013-03-06)
28,401 reads
Automated Trigger To Require a WHERE Clause
Learn how you can build triggers that prevent an update or delete statement from being run without a WHERE clause in this article.
2013-08-09 (first published: 2011-01-25)
16,944 reads
Delete records in all related tables
Used to generate Select/Delete scripts. It does NOT run them.
You need to copy the output of this script to a new window and run it manually.
2008-08-06
603 reads
The Difference between Truncate and Delete in SQL Server
This article explains the differences between the Truncate and Delete commands in SQL Server.
2011-07-04 (first published: 2007-11-22)
37,239 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) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers