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Find size of an array in Perl
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The predefined variable $[ specifies "The index of the first element in an array, and of the first character in a substring" (perldoc perlva...
Is it possible to GROUP BY multiple columns using MySQL?
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Jordan Dodson
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answered Jan 6 '14 at 4:43
phpphp
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Responsive image map
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5
is any of this still relevant? could you provide an update please?
– Malachi
Jan 31 '14 at 14:32
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What is the best way to programmatically detect porn images? [closed]
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25 Answers
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Active
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Make $JAVA_HOME easily changable in Ubuntu [closed]
...ke to switch my JAVA_HOME environment variable back and forth between Java 5 and 6.
8 Answers
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What is the difference between HashSet and List?
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215
Unlike a List<> ...
A HashSet is a List with no duplicate members.
Because a HashSet is ...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
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EliadL
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answered Jan 4 '13 at 19:01
Andy HaydenAndy Hayden...
Why historically do people use 255 not 256 for database field magnitudes?
You often see database fields set to have a magnitude of 255 characters, what is the traditional / historic reason why? I assume it's something to do with paging / memory limits, and performance but the distinction between 255 and 256 has always confused me.
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PHP date() format when inserting into datetime in MySQL
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edited Jul 7 at 5:46
John
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answered F...
Random float number generation
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edited Mar 5 '17 at 9:28
Florin Mircea
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answered M...