Logins

Technical Article

Audit Users logging in using "sa" or service accounts

  • Script

Security is probably one of a production DBA's most important tasks and if developers use application or service accounts to run queries in your production environment you need to identify then and prohibit it. I notice some unwanted activity after staring a new job and decided to create a script that notifies me via email when […]

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2019-07-04 (first published: )

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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