Chris

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Upcoming Content

This is the reality of learning newer tech somewhat in depth and working with it. What this series of posts...

2017-07-24

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Blog Post

Upcoming Content

This is the reality of learning newer tech somewhat in depth and working with it. What this series of posts...

2017-07-24

178 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)

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