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Running multiple commands in one line in shell
...html#Lists
– flow2k
Jul 2 '18 at 20:56
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How to escape a single quote inside awk
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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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## t b a
## 1: 1 NA 1
## 2: 2 NA 4
## 3: 3 9 9
## 4: 4 16 16
## 5: 5 25 NA
## 6: 6 36 NA
# The following will give the same with the column order X,Y
X[Y[J(unique_keys)]]
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SQL Server Management Studio SSMS tries to “save to file” instead of execute on F5
...e you have tried one of the steps above, run your query again by pressing F5.
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Margin-Top not working for span element?
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What's the difference between tag and release?
....com/repos/reactiveui/ReactiveUI/releases
Whereas this one will list the 54 tags (as of today) from the same repository
https://api.github.com/repos/reactiveui/ReactiveUI/tags
Creating a release is currently in a process which involves a manual action (adding the release notes, uploading the p...
Does MySQL foreign_key_checks affect the entire database?
...en set the way you did in your question.
https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html
According to this, FOREIGN_KEY_CHECKS is "Both" for scope. This means it can be set for session:
SET FOREIGN_KEY_CHECKS=0;
or globally:
SET GLOBAL FOREIGN_KEY_CHECKS=0;
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Android: When is onCreateOptionsMenu called during Activity lifecycle?
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answered Oct 9 '11 at 21:15
CommonsWareCommonsWare
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What's the difference between `1L` and `1`?
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edited Aug 10 '11 at 17:54
answered Aug 10 '11 at 16:52
T...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
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The params in a controller looks like a Hash, but it's actually an instance of ActionController:...