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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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Can grep show only words that match search pattern?
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edited Feb 5 '16 at 7:43
Stefan van den Akker
5,31577 gold badges3636 silver badges5454 bronze badges
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What is the “right” way to iterate through an array in Ruby?
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This will iterate through all the elements:
array = [1, 2, 3, 4, 5, 6]
array.each { |x| puts x }
Prints:
1
2
3
4
5
6
This will iterate through all the elements giving you the value and the index:
array = ["A", "B", "C"]
array.each_with_index {|val, index| puts "#{val} => #{i...
Difference between case object and object
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edited Dec 8 '12 at 23:12
axel22
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answer...
How to generate a core dump in Linux on a segmentation fault?
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answered Aug 20 '08 at 13:50
Eli CourtwrightEli Courtwright
157k6161 gold badges199199 silver badges255255 bronze badges
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Run git pull over all subdirectories [duplicate]
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328
Run the following from the parent directory, plugins in this case:
find . -type d -depth 1 -e...
C fopen vs open
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edited Sep 17 '19 at 4:37
answered Nov 1 '09 at 22:00
Om...
How to speed up insertion performance in PostgreSQL
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Ufuk Hacıoğulları
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answered Aug 30 '12 at 23:58
Craig Ringer...
Using R to download zipped data file, extract, and import data
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answered Jun 16 '10 at 13:57
Dirk EddelbuettelDirk Eddelbuettel
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Google OAuth 2 authorization - Error: redirect_uri_mismatch
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