Evolution of code The thing with any bit of code that has been around for a while, is that when change comes along, the tendency is to cater for the change by adding new stuff, while nothing gets taken away. Some stuff has definitely been taken away from this Date Dimension, but some historical artefacts […]
2025-09-02 (first published: 2025-08-05)
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2021-03-05 (first published: 2019-02-21)
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In this piece, learn about changes in UK holidays and get a script to calculate them.
2019-07-15
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2019-06-06 (first published: 2018-01-04)
6,242 reads
Adding Years, Months and Days to Years, Months and Days, with Bonus UK Public Holiday calculation.
2017-03-14
3,290 reads
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
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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