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Project Gemini

Dan English put up a blog post on his experiences with installing Gemini. His post is loaded with screen shots...

2009-08-31

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reading.

Reading another great book ( I know its old but good book)...Inside Microsoft sql server 2005: T-SQL QUERYING....by Itzik Ben - Gan.

2009-08-30

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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