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Can we use join for two different database tables?
...PierreRePierre
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
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3 Answers
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Active
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Visual Studio SP1 error: silverlight_sdk.msi is unavailable
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132
It's because Silverlight 4 isn't bundled with SP1 (apparently). Download Silverlight 4 tools, e...
What does curly brackets in the `var { … } = …` statements do?
...ith Python, it's similar to this syntax:
>>> a, (b, c) = (1, (2, 3))
>>> a, b, c
(1, 2, 3)
The first code chunk is shorthand for:
var {Hotkey: Hotkey} = require("sdk/hotkeys");
// Or
var Hotkey = require("sdk/hotkeys").Hotkey;
You can rewrite the second code chunk as:
let Cc...
Qt c++ aggregate 'std::stringstream ss' has incomplete type and cannot be defined
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edited May 23 '17 at 12:18
Community♦
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answered Aug 1 '12 at 1:50
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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...
Setup RSpec to test a gem (not Rails)
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edited Jan 2 '17 at 19:13
Cœur
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Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
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edited Oct 3 '18 at 4:25
answered Mar 7 '15 at 15:49
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The backend version is not supported to design database diagrams or tables
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edited May 28 '19 at 5:38
BPX
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answered Aug 5 '14 a...
int value under 10 convert to string two digit number
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answered Jun 1 '10 at 6:30
MPritchardMPritchard
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