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How to add “on delete cascade” constraints?
In PostgreSQL 8 is it possible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the latter?
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Find the version of an installed npm package
How to find the version of an installed node.js/npm package ?
27 Answers
27
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Rails nested form with has_many :through, how to edit attributes of join model?
How do you edit the attributes of a join model when using accepts_nested_attributes_for?
3 Answers
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Where is the documentation for the values() method of Enum?
I declare an enum as :
3 Answers
3
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ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
I use the following command:
15 Answers
15
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How to get overall CPU usage (e.g. 57%) on Linux [closed]
I am wondering how you can get the system CPU usage and present it in percent using bash, for example.
5 Answers
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What's the difference between require and require-dev? [duplicate]
I'm new to the composer and I would like to know the difference between require and require-dev .
The composer website doesn't offer a good explanation the difference between these two.
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How do I switch to another subversion branch in Intellij?
What is the concept of switching branches in IntelliJ?
I must be either blind or an idiot...
4 Answers
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Difference between java.exe and javaw.exe
Recently I noted that some applications are running on javaw (not in java ). What is the difference between them and how can I run my Swing application on javaw ?
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What's the difference between subprocess Popen and call (how can I use them)?
I want to call an external program from Python. I have used both Popen() and call() to do that.
2 Answers
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