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What is the most efficient/elegant way to parse a flat table into a tree?
...id, descendant_id) VALUES
(1,1), (1,2), (1,4), (1,6),
(2,2), (2,4),
(3,3), (3,5),
(4,4),
(5,5),
(6,6);
Now you can get a tree starting at node 1 like this:
SELECT f.*
FROM FlatTable f
JOIN ClosureTable a ON (f.id = a.descendant_id)
WHERE a.ancestor_id = 1;
The output (in MySQL c...
Using System.Dynamic in Roslyn
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AlbertoAlberto
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How do you copy and paste into Git Bash
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30 Answers
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Add and remove multiple classes in jQuery
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3 Answers
3
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How do I pass a unique_ptr argument to a constructor or a function?
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edited May 3 '15 at 12:01
kevinarpe
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Closing multiple issues in Github with a commit message
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Closes #1, closes #2, closes #3; rest of commit message.
The closes clauses can be anywhere in the message and fixes is a valid synonym:
This fixes a memory leak in foo() that closes #4,
also fixes #5 which is a duplicate.
The following used to work...
Java: using switch statement with enum under subclass
...itch statement?
– jzarsuelo
Dec 6 '13 at 17:43
3
@cRane01 don't know for sure, but it makes for a...
How to express a One-To-Many relationship in Django
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edited Aug 3 '11 at 16:33
answered Aug 3 '11 at 15:41
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