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How can I determine if a String is non-null and not only whitespace in Groovy?
...true too"
– tim_yates
Aug 27 '19 at 10:33
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show 2 more comments
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Why does PostgreSQL perform sequential scan on indexed column?
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If the SELECT returns more than approximately 5-10% of all rows in the table, a sequential scan is much faster than an index scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the hea...
getenv() vs. $_ENV in PHP
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answered Jan 10 '12 at 3:49
BatkinsBatkins
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difference between scope and namespace of ruby-on-rails 3 routing
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105
The difference lies in the paths generated.
The paths are admin_posts_path and admin_comments...
grep without showing path/file:line
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– fedorqui 'SO stop harming'
Mar 22 at 10:19
1
Yes it was using the alias.
– j...
What is the default form HTTP method?
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answered Feb 22 '10 at 21:42
Drew WillsDrew Wills
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Start service in Android
...oy, any and all methods).
– Zoe
Apr 10 '17 at 18:41
it's work for my apps on android sdk 26+ but dose not on android ...
Difference between objectForKey and valueForKey?
... @ symbol.
– dreamlax
Jun 30 '09 at 10:17
61
objectForKey: accepts any object as a key, not just ...
C/C++ macro string concatenation
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answered Mar 10 '11 at 6:53
SeanSean
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How does comparison operator works with null int?
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210
According to MSDN - it's down the page in the "Operators" section:
When you perform compari...