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Does a foreign key automatically create an index?
...en two tables - that has nothing to do with an index per se.
But it is a known fact that it makes a lot of sense to index all the columns that are part of any foreign key relationship, because through a FK-relationship, you'll often need to lookup a relating table and extract certain rows based on ...
Default parameters with C++ constructors [closed]
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And now, 5 years later, C++11 has added delegating constructors and default member initialization in the class definition, making the default parameter workaround unnecessary: en.wikipedia.org/wiki/C%2B%2B11#Object_construction_i...
Using an SSH keyfile with Fabric
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Another cool feature available as of Fabric 1.4 - Fabric now supports SSH configs.
If you already have all the SSH connection parameters in your ~/.ssh/config file, Fabric will natively support it, all you need to do is add:
env.use_ssh_config = True
at the beginning of your fa...
Get month name from Date
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It is now possible to do this with the ECMAScript Internationalization API:
const date = new Date(2009, 10, 10); // 2009-11-10
const month = date.toLocaleString('default', { month: 'long' });
console.log(month);
'lon...
Paste text on Android Emulator
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As of January 2018 there is a known bug in the current emulator version where this occasionally stops working. As a workaround, click the "..." icon, go to Settings, and toggle the "Enable clipboard sharing" setting off and on. (Source)
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Form inside a table
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Seems "in development" now, and ok to use
– user1156544
Jun 19 '17 at 13:47
1
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A generic list of anonymous class
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okay cool, now we need an example of replacing the new {} lines with a select statement. var list = sourceList.Select( o => new { ...
JavaScript blob filename without link
...actually mount the a tag to the body in order for this to work (tried just now in Chrome)
– beyond-code
Aug 12 '19 at 10:37
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show 13 more c...
Javascript heredoc
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I know but I hope to find heredoc hack :)
– VeroLom
Dec 7 '10 at 12:21
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Javascript - Track mouse position
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Why tracking a value that you know for sure didn't change? I don't understand, unless it is a homework problem. With the event method, you can track every change of these values, then do a 100ms polling elsewhere if you need to handle these values for what...