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How do you use script variables in psql?

In MS SQL Server, I create my scripts to use customizable variables: 13 Answers 13 ...
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Find the day of a week

...day ## 1 2012-02-01 Wednesday ## 2 2012-02-01 Wednesday ## 3 2012-02-02 Thursday Edit: Just to show another way... The wday component of a POSIXlt object is the numeric weekday (0-6 starting on Sunday). as.POSIXlt(df$date)$wday ## [1] 3 3 4 which you could use to subset a character vector of ...
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How to copy a directory structure but only include certain files (using windows batch files)

As the title says, how can I recursively copy a directory structure but only include some files. E.g given the following directory structure: ...
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Is there a way to run Bash scripts on Windows? [closed]

I have bought and I use Windows 7 Ultimate, and I like to use it to develop applications. One of the down sides (as with every OS) is that I can not run Bash scripts. Is there a way to run Bash scripts on Windows by installing some software? It is ok if it does not work 100%, but as long as the most...
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Convert interface{} to int

I'm trying to get a value from a JSON and cast it to int but it doesn't work, and I don't know how to do it properly. 10 An...
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convert string array to string

I would like to convert a string array to a single string. 9 Answers 9 ...
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How to close activity and go back to previous activity in android

I have a main activity, that when I click on a button, starts a new activity, i used the following code to do so: 18 Answer...
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What is the equivalent of Java's final in C#?

What is the equivalent of Java's final in C#? 7 Answers 7 ...
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How to compare two floating point numbers in Bash?

...rying hard to compare two floating point numbers within a bash script. I have to variables, e.g. 17 Answers ...
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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 ...