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Turn off constraints temporarily (MS SQL)
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You can disable FK and CHECK constraints only in SQL 2005+. See ALTER TABLE
ALTER TABLE foo NO...
Haskell: Where vs. Let
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1: The problem in the example
f :: State s a
f = State $ \x -> y
where y = ... x ...
is the parameter x. Things in the where clause can refer only to the parameters of the function f (there are none) and things in o...
How to retrieve absolute path given relative
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MySQL, better to insert NULL or empty string?
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221
By using NULL you can distinguish between "put no data" and "put empty data".
Some more differe...
getting date format m-d-Y H:i:s.u from milliseconds
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15 Answers
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Regular expression to match balanced parentheses
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Why use Ruby's attr_accessor, attr_reader and attr_writer?
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edited Sep 28 '12 at 11:03
answered Feb 18 '11 at 21:43
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How can I detect if a file is binary (non-text) in python?
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edited Nov 4 '17 at 14:18
A. Hennink
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answered May 22 '...
How to convert ActiveRecord results into an array of hashes
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212
as_json
You should use as_json method which converts ActiveRecord objects to Ruby Hashes despi...