大约有 10,170 项符合查询结果（耗时：0.0164秒） [XML]
proper way to sudo over ssh
I have a script which runs another script via SSH on a remote server using sudo. However, when I type the password, it shows up on the terminal. (Otherwise it works fine)
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
I have a feeling there is a simple/built-in way to do this but I can't find it.
13 Answers
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How to make the division of 2 ints produce a float instead of another int?
In another Bruce Eckels exercise in calculating velocity, v = s / t where s and t are integers. How do I make it so the division cranks out a float?
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Rails migration for change column
We have script/generate migration add_fieldname_to_tablename fieldname:datatype syntax for adding new columns to a model.
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Immutable array in Java
Is there an immutable alternative to the primitive arrays in Java? Making a primitive array final doesn't actually prevent one from doing something like
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How to achieve function overloading in C?
Is there any way to achieve function overloading in C? I am looking at simple functions to be overloaded like
14 Answers
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Principal component analysis in Python
I'd like to use principal component analysis (PCA) for dimensionality reduction. Does numpy or scipy already have it, or do I have to roll my own using numpy.linalg.eigh ?
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specify project file of a solution using msbuild
I want the commandline for building a particular project of a solution using msbuild like we do with devenv.com.In devenv.com we can specify a project of a solution using following commandline
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How to implement a ConfigurationSection with a ConfigurationElementCollection
I am trying to implement a custom configuration section in a project and I keep running up against exceptions that I do not understand. I am hoping someone can fill in the blanks here.
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Find all tables containing column with specified name - MS SQL Server
Is it possible to query for table names which contain columns being
29 Answers
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