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Purge or recreate a Ruby on Rails database
...o this:
This will reset your database and reload your current schema with all:
rake db:reset db:migrate
This will destroy your db and then create it and then migrate your current schema:
rake db:drop db:create db:migrate
All data will be lost in both scenarios.
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How can I search for a commit message on GitHub?
Not in a Git repository , but rather in GitHub specifically - how do I search just the commit messages of a specific repository/branch?
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How can I verify if a Windows Service is running
...implemented as a Windows Service. When the device boots, this service typically takes some time to start. I'd like to check, from my code, if the service is running. How can I accomplish this?
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Is there a way to list open transactions on SQL Server 2000 database?
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For all databases query sys.sysprocesses
SELECT * FROM sys.sysprocesses WHERE open_tran = 1
For the current database use:
DBCC OPENTRAN
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IISExpress returns a 503 error from remote machines
...swered Mar 27 '11 at 21:07
vikomallvikomall
16.6k66 gold badges4343 silver badges3737 bronze badges
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What is an intuitive explanation of the Expectation Maximization technique? [closed]
... around 7 (and we could find the exact means if we wanted).
This is, generally speaking, known as maximum likelihood estimation. Given some data, we compute the value of a parameter (or parameters) that best explains that data.
Now imagine that we cannot see which value was sampled from which grou...
How to switch position of two items in a Python list?
...problem on the net (probably because switch, position, list and Python are all such overloaded words).
7 Answers
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How do I “Add Existing Item” an entire directory structure in Visual Studio?
I have a free standing set of files not affiliated with any C# project at all that reside in a complicated nested directory structure.
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Internet Explorer's CSS rules limits
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It's actually those same two links that have me confused. The KB says "All style rules after the first 4,095 rules are not applied.", which to me implies that it is per-page, the other link says "A sheet may contain up to 4095 rules",...
Generic method multiple (OR) type constraint
Reading this , I learned it was possible to allow a method to accept parameters of multiple types by making it a generic method. In the example, the following code is used with a type constraint to ensure "U" is an IEnumerable<T> .
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