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Update one MySQL table with values from another
...e tables? You should have indexes on tobeupdated.value and original.value
EDIT:
we can also simplify the query
UPDATE tobeupdated
INNER JOIN original USING (value)
SET tobeupdated.id = original.id
USING is shorthand when both tables of a join have an identical named key such as id. ie an equi-j...
Serialize form data to JSON [duplicate]
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edited Jul 18 '17 at 19:35
chim
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Can Selenium Webdriver open browser windows silently in background?
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edited May 23 '17 at 11:47
Community♦
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answered Apr 24 '13 a...
How to drop into REPL (Read, Eval, Print, Loop) from Python code
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edited Oct 25 '17 at 16:53
answered Sep 8 '09 at 21:18
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Ruby on Rails - Import Data from a CSV file
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edited Apr 23 '13 at 0:18
answered Dec 10 '10 at 16:15
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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
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edited Apr 15 '14 at 17:11
answered May 3 '13 at 15:45
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Run all SQL files in a directory
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edited Mar 6 at 13:32
Mauricio Gracia Gutierrez
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namedtuple and default values for optional keyword arguments
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edited Jan 6 at 1:46
answered Aug 21 '13 at 2:40
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Convert blob to base64
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edited Jul 18 at 7:14
answered Sep 6 '13 at 5:05
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Why and when to use Node.js? [duplicate]
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edited Jul 19 '14 at 15:33
Peter Mortensen
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