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PostgreSQL - how to quickly drop a user with existing privileges
...ivileges granted to the user.
See the postgres docs for DROP ROLE and the more detailed description of this.
Addition:
Apparently, trying to drop a user by using the commands mentioned here will only work if you are executing them while being connected to the same database that the original GRAN...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
...epth of knowledge in matrix algebra and model formulation). After digging more, I've been able to gather that the -1 is just specifying not to include the "intercept" column. If you leave out the -1, you'll see an intercept column of 1's in the output with one binary column left out. You're able ...
How to create materialized views in SQL Server?
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They're called indexed views in SQL Server - read these white papers for more background:
Creating an Indexed View
Improving Performance with SQL Server 2008 Indexed Views
Basically, all you need to do is:
create a regular view
create a clustered index on that view
and you're done!
The ...
How to align content of a div to the bottom
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How to define custom configuration variables in rails
...opment.rb. Make sure you restart your server after modifying. There may be more elegant techniques, but I'm upgrading an existing app which previously used ENV['XXX'] in the same file, and since I want to limit the amount of refactoring during the upgrade, this worked out well.
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How can I match a string with a regex in Bash?
...ot a concern, I recommend using [[ instead of [ or test as it is safer and more powerful. See What is the difference between test, [ and [[ ? for details.
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How to get the raw value an field?
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Remove rows with all or some NAs (missing values) in data.frame
...0221312 0 1 2 3 2
but using complete.cases is quite a lot more clear, and faster.
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Refresh image with a new one at the same url
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Where to put view-specific javascript files in an ASP.NET MVC application?
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