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What does SQL clause “GROUP BY 1” mean?

...QL query where the GROUP BY clause consisted of the statement: GROUP BY 1 . 6 Answers ...
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How do I get SUM function in MySQL to return '0' if no values are found?

...ee it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0 More Information: Given three tables (one with all numbers, one with all nulls, and one with a mixture): SQL Fiddle MySQL 5.5.32 Schema Setup: CREATE TABLE foo ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY...
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How to set Python's default version to 3.x on OS X?

... 21 Answers 21 Active ...
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writing some characters like '

... | edited Jul 7 '16 at 19:48 Hussein El Feky 5,84955 gold badges4242 silver badges5656 bronze badges ...
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How to modify a pull request on GitHub to change target branch to merge into?

... 143 Update August 2016: Change the base branch of a Pull Request finally allows for changing that ...
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Unique (non-repeating) random numbers in O(1)?

I'd like to generate unique random numbers between 0 and 1000 that never repeat (i.e. 6 doesn't show up twice), but that doesn't resort to something like an O(N) search of previous values to do it. Is this possible? ...
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How do I test an AngularJS service with Jasmine?

... 137 The problem is that the factory method, that instantiate the service, is not called in the exa...
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Bundle ID Suffix? What is it?

...d by a period (.) — an App ID Prefix (your Team ID by default, e.g. ABCDE12345), and an App ID Suffix (a Bundle ID search string, e.g. com.mycompany.appname). [emphasis added] So in this case the suffix is the full string com.awesomeapps.thebestapp. ...
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What are the differences between the BLOB and TEXT datatypes in MySQL?

... 103 TEXT and CHAR will convert to/from the character set they have associated with time. BLOB and ...
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What is the purpose of a plus symbol before a variable?

... | edited Apr 10 '19 at 13:32 Daniel W. 24.8k88 gold badges7070 silver badges114114 bronze badges ...