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Postgres unique constraint vs index
As I can understand documentation the following definitions are equivalent:
8 Answers
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Common use-cases for pickle in Python
...that I have come across:
1) saving a program's state data to disk so that it can carry on where it left off when restarted (persistence)
2) sending python data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbit...
Tricky Google interview question
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edited Aug 19 '14 at 18:58
Will Ness
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Is there a bash command which counts files?
...* | wc -l
ls -1q will give you one line per file, even if they contain whitespace or special characters such as newlines.
The output is piped to wc -l, which counts the number of lines.
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How to combine two or more querysets in a Django view?
I am trying to build the search for a Django site I am building, and in that search, I am searching in 3 different models. And to get pagination on the search result list, I would like to use a generic object_list view to display the results. But to do that, I have to merge 3 querysets into one.
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Split long commands in multiple lines through Windows batch file
How can I split long commands over multiple lines in a batch file?
5 Answers
5
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How do I check (at runtime) if one class is a subclass of another?
Let's say that I have a class Suit and four subclasses of suit: Heart, Spade, Diamond, Club.
9 Answers
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How many threads is too many?
I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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How can I print the contents of a hash in Perl?
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edited Nov 3 '12 at 11:25
hippietrail
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What are the “must have” jQuery plugins? [closed]
...ieving and manipulating json data.
Cookie
Simple & lightweight utility plugin for reading, writing and deleting cookies.
Vaildation
For validating form input data.
UI
Full-featured themable and ready-to-use widgets and more...
Interface
Dragging, Sortables, Droppables, plug-and-play...