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Double not (!!) operator in PHP

... | edited May 24 '17 at 7:41 Álvaro González 124k3434 gold badges222222 silver badges314314 bronze badges ...
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What do

... 218 These are called generalized type constraints. They allow you, from within a type-parameterized...
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Why do we need tuples in Python (or any immutable data type)?

... 124 immutable objects can allow substantial optimization; this is presumably why strings are also...
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How to get cumulative sum

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C++, Free-Store vs Heap

... answered Aug 29 '09 at 8:15 Michael KovalMichael Koval 7,24244 gold badges3434 silver badges4949 bronze badges ...
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Does PostgreSQL support “accent insensitive” collations?

... $func$ SELECT public.immutable_unaccent(regdictionary 'public.unaccent', $1) $func$; Drop PARALLEL SAFE from both functions for Postgres 9.5 or older. public being the schema where you installed the extension (public is the default). The explicit type declaration (regdictionary) defends against...
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What's the difference between an exclusive lock and a shared lock?

... | edited Aug 7 '12 at 0:27 answered Aug 7 '12 at 0:19 ...
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Stylecop vs FXcop

... 171 Stylecop is a style analysis tool that works at the source code level. It exists primarily to...
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Reshaping data.frame from wide to long format

... idvar = c("Code", "Country"), timevar = "Year", times = 1950:1954) share | improve this answer | follow | ...
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Set a DateTime database field to “Now”

... 177 In SQL you need to use GETDATE(): UPDATE table SET date = GETDATE(); There is no NOW() func...