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View markdown files offline [closed]
...plug-ins that work well. I've been using Markdown Preview Plus.
After install, enable "Allow access to file URLs" in Extensions (menu > More tools > Extensions or enter URL chrome://extensions/ instead).
Then drag-n-drop a Markdown file onto Chrome and use your favorite editor to edit.
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Creating an index on a table variable
...ds of adding constraint based indexes discussed below SQL Server 2014 also allows non unique indexes to be specified directly with inline syntax on table variable declarations.
Example syntax for that is below.
/*SQL Server 2014+ compatible inline index syntax*/
DECLARE @T TABLE (
C1 INT INDEX IX...
Language Books/Tutorials for popular languages
... online tutorials to learn programming languages or platforms. These generally give you no more than a little taste of the language. To really learn a language, you need the equivalent of a "book", and in many cases, this means a real dead-tree book.
If you want to learn C, read K&R. If you ...
What is the difference between a deep copy and a shallow copy?
What is the difference between a deep copy and a shallow copy?
31 Answers
31
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Nokogiri installation fails -libxml2 is missing
I always worked my way around Nokogiri installation issues by following the documentation in the " Installing Nokogiri " tutorial.
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Force R not to use exponential notation (e.g. e+10)?
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This is a bit of a grey area. You need to recall that R will always invoke a print method, and these print methods listen to some options. Including 'scipen' -- a penalty for scientific display. From help(options):
‘scipen’: integer. A penalty to be applied wh...
PostgreSQL error: Fatal: role “username” does not exist
...I can't do anything with PostgreSQL: can't createdb , can't createuser ; all operations return the error message
15 Answe...
What is the difference between loose coupling and tight coupling in the object oriented paradigm?
...s can maintain a list of classes that inherit from 'Observer', without actually knowing the concrete type of those classes, this is an instance of loose coupling. The Subject doesn't depend on any of its Observers or their internal concerns. The observers don't depend on the Subject or any of its co...
How to prove that a problem is NP complete?
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As far as I remember, there is a theorem called the Cook-Levin theorem which states that SAT is NP-complete. That proof is quite a bit more complicated than what I outlined above and I don't think I can explain it in my own words.
– Laila Agaev
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List of tables, db schema, dump etc using the Python sqlite3 API
...te("SELECT name FROM sqlite_master WHERE type='table';")
print(cursor.fetchall())
Watch out for my other answer. There is a much faster way using pandas.
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