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add column to mysql table if it does not exist
...d. It should throw an error if the column already exists.
ERROR 1060 (42S21): Duplicate column name 'newcolumnname'
Catch the error and disregard it in your upgrade script.
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Node.js - getting current filename
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herveherve
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Why doesn't Python have a sign function?
...many votes.?
– kxr
Aug 18 '16 at 10:21
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Regex Named Groups in Java
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geofflanegeofflane
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mongodb count num of distinct values per field/key
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StennieStennie
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Using AES encryption in C#
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Kcvin
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Why does “_” (underscore) match “-” (hyphen)?
.....???
– Nico Haase
Jan 19 '18 at 13:21
yes, there were rows with location='IND - HQ' and the above did fix the issue f...
Circular list iterator in Python
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edited Aug 21 '15 at 18:58
answered May 1 '14 at 21:00
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What are all the uses of an underscore in Scala?
...e misunderstanding. :(
– m0z4rt
Sep 21 '15 at 8:17
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background function in Python
... from gevent import monkey; monkey.patch_all()?
– nz_21
Feb 1 at 21:01
patches standard library for gevent compatibili...