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Do I need elements in persistence.xml?
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answered Nov 22 '09 at 23:10
Pascal ThiventPascal Thivent
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Notification passes old Intent Extras
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IncrediAppIncrediApp
9,89322 gold badges2929 silver badges2424 bronze badges
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...ing. The analogous std::shared_timed_mutex is available only since C++14 (N3891), while std::shared_mutex is available only since C++17 (N4508).
C++11 timeouts are different to Boost timeouts (though this should soon change now Boost.Chrono has been accepted).
Some of the names are different (e.g. b...
How do function pointers in C work?
...have a pointer to the function, let's use it:
int sum = (*functionPtr)(2, 3); // sum == 5
Passing the pointer to another function is basically the same:
int add2to3(int (*functionPtr)(int, int)) {
return (*functionPtr)(2, 3);
}
We can use function pointers in return values as well (try to ...
致PHP路上的“年轻人” - PHP - 清泛IT社区，为创新赋能！
...或以月为单位，或以季度。但长期规划，一定给自己按照3~4年为一个阶段去规划。短期规划，根据当下情况，明确一个较短的周期内要完成哪些事，实现什么目标，并且可以以这个周期为单位，陆续的给自己制定目标，这样当你...
How to get the list of files in a directory in a shell script?
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answered Mar 13 '10 at 6:08
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
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edited Aug 9 '17 at 13:18
Marek Jeszka
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answ...
Setting an environment variable before a command in Bash is not working for the second command in a
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324
FOO=bar bash -c 'somecommand someargs | somecommand2'
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Select row with most recent date per user
... USER | TIME | IO |
--------------------------------
| 2 | 9 | 1370931664 | out |
| 3 | 6 | 1370932128 | out |
| 5 | 12 | 1370933037 | in |
Solution which gonna work everytime:
SQLFIDDLEExample
SELECT t1.*
FROM lms_attendance t1
WHERE t1.id = (SELECT t2.id
FRO...
PHP: How to remove all non printable characters in a string?
I imagine I need to remove chars 0-31 and 127,
17 Answers
17
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