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Create an index on a huge MySQL production table without table locking
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[2017] Update: MySQL 5.6 has support for online index updates
https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html#online-ddl-index-syntax-notes
In MySQL 5.6 and higher, the table remains available for r...
multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
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how many hidden layers?
a model with zero hidden layers will resolve linearly separable data. ...
Microsecond timing in JavaScript
...'t mix, as Date is based on unix-epoch (the number of milliseconds since 1970), while now() is the number of milliseconds since your page navigation started (so it will be much smaller than Date).
now() is supported in Chrome stable, Firefox 15+, and IE10. There are also several polyfills availabl...
Mercurial stuck “waiting for lock”
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jm.jm.
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iOS 7 style Blur view
Does anybody know of any controls that will replicate the iOS7 style blur views.
6 Answers
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How can I create a copy of an object in Python?
...n Marnach
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What does .SD stand for in data.table in R
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edited Nov 15 '17 at 7:36
MichaelChirico
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Optimise PostgreSQL for fast testing
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edited May 23 '17 at 11:54
Community♦
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answered Feb 23 '12 at 5:57
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Eclipse Workspaces: What for and why?
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I heard that something, like the Java compiler version (like 1.7, e.g - I don't know if 'version' is the word here), is a workspace-level configuration. If you have several projects inside your workspace, and compile them inside of Eclipse, all of them will be compiled with the same Java...
Why shouldn't all functions be async by default?
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edited Aug 28 '13 at 23:27
answered Aug 28 '13 at 23:19
Er...