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What's the difference between TRUNCATE and DELETE in SQL
...Use of FLASHBACK in Oracle
http://docs.oracle.com/cd/E11882_01/appdev.112/e41502/adfns_flashback.htm#ADFNS638
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Variable
Oracle
Delete can be granted on a table to another user or role, but truncate cannot be without using a DROP ANY TABLE grant.
Redo/Undo
Delete generates a small...
How to upgrade Git to latest version on macOS?
...e System Integrity Protection as described here apple.stackexchange.com/a/248229/16290. Personally I just update my PATH so that /usr/local/bin comes before /usr/bin. That way Homebrew's git always takes precedence (after you close terminal and re-open). For git security vulnerabilities, Apple will ...
Counting null and non-null values in a single query
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Rodrigue
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answered Aug 13 '09 at 13:09
user155789user155789
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HTML5 Pre-resize images before uploading
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184
Yes, use the File API, then you can process the images with the canvas element.
This Mozilla Ha...
Pointer arithmetic for void pointer in C
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SadeqSadeq
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Is a Java hashmap search really O(1)?
... worldofjr
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answered Jun 28 '09 at 17:33
SingleNegationEliminationSingleNegationElimination
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Convert to/from DateTime and Time in Ruby
...in a
# fraction of a day.
offset = Rational(utc_offset, 60 * 60 * 24)
DateTime.new(year, month, day, hour, min, seconds, offset)
end
end
Similar adjustments to Date will let you convert DateTime to Time .
class Date
def to_gm_time
to_time(new_offset, :gm)
end
def to_lo...
Is it true that one should not use NSLog() on production code?
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John Topley
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answered Nov 19 '08 at 15:25
Marc Charbonn...
How to clear/remove observable bindings in Knockout.js?
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Eat at Joes
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answered Apr 6 '12 at 22:00
KodeKreachorKodeKr...
How to import local packages without gopath
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edited Sep 5 '18 at 17:14
answered Jul 9 '13 at 3:43
user...