大约有 42,000 项符合查询结果（耗时：0.0573秒） [XML]
In SQL, what's the difference between count(column) and count(*)?
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236
count(*) counts NULLs and count(column) does not
[edit] added this code so that people can run...
How to push both value and key into PHP array
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answered Jan 23 '10 at 0:45
PekkaPekka
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How do I make a LinearLayout scrollable?
...w.
– JoaoFilipeClementeMartins
Jan 23 '14 at 11:56
4
You should avoid scrollable content inside s...
Rails DB Migration - How To Drop a Table?
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edited Jan 5 '16 at 17:23
Joe Kennedy
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answered...
Cloning an Object in Node.js
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300
Possibility 1
Low-frills deep copy:
var obj2 = JSON.parse(JSON.stringify(obj1));
Possibility ...
Why does PHP 5.2+ disallow abstract static class methods?
...ass's static method
EDIT (Sept. 16th, 2009)
Update on this. Running PHP 5.3, I see abstract static is back, for good or ill. (see http://php.net/lsb for more info)
CORRECTION (by philfreo)
abstract static is still not allowed in PHP 5.3, LSB is related but different.
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Multi-gradient shapes
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383
I don't think you can do this in XML (at least not in Android), but I've found a good solution...
Last iteration of enhanced for loop in java
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223
Another alternative is to append the comma before you append i, just not on the first iteration....
What's the most efficient test of whether a PHP string ends with another string?
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13 Answers
13
Active
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heroku - how to see all the logs
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Update (thanks to dawmail333):
heroku logs -n 1500
or, to tail the logs live
heroku logs -t
Heroku log documentation
If you need more than a few thousand lines you can Use heroku's Syslog Drains
Alternatively (old method):
$ heroku run rai...