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Get $_POST from multiple checkboxes
...dited Jul 6 '18 at 6:10
ʇolɐǝz ǝɥʇ qoq
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answered Feb 14 '11 at 21:06
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Make sure only a single instance of a program is running
... edited Apr 14 '13 at 11:11
Grzegorz Adam Hankiewicz
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answered Aug 12 '09 at 10:45
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How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i
...arlan
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Can a variable number of arguments be passed to a function?
...rvais
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answered May 28 '09 at 7:51
unwindunwind
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WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
...ayyil
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Does Python have an ordered set?
...b
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answered Oct 31 '09 at 10:15
CasebashCasebash
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'AND' vs '&&' as operator
...and $that;
Want to guess what $truthiness equals?
If you said false... bzzzt, sorry, wrong!
$truthiness above has the value true. Why? = has a higher precedence than and. The addition of parentheses to show the implicit order makes this clearer:
($truthiness = $this_one) and $that
If you us...
mysql_config not found when installing mysqldb python interface
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almanegra
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answered Sep 19 '11 at 18:06
amarillionamarillion
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What is the difference between parseInt() and Number()?
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Adam
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answered Nov 3 '10 at 18:57
Christian C. SalvadóChristian C. Salvadó
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SQL Joins Vs SQL Subqueries (Performance)?
...valuates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...).
As with ALL THINGS SQL though, your mileage may vary. The speed will depend a lot on indexes (do you have indexes on both ID columns? That will help a lot...) among other things.
The only REAL way to tell with ...