大约有 47,000 项符合查询结果(耗时:0.0591秒) [XML]

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Best way to select random rows PostgreSQL

...lass WHERE oid = 'schema_name.big'::regclass; As long as ct isn't much smaller than id_span, the query will outperform other approaches. WITH params AS ( SELECT 1 AS min_id -- minimum id <= current min id , 5100000 AS id_span -- rounded up. (max_id - m...
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Pure JavaScript Send POST Data Without a Form

...e_1: 123, example_2: 'Hello, world!', }); navigator.sendBeacon('example.php', data); share | improve this answer |
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What is the fastest way to compute sin and cos together?

.... If you need strong optimization, perhaps you should use it. Here is a small example: http://home.broadpark.no/~alein/fsincos.html Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669 Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...
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Search for all files in project containing the text 'querystring' in Eclipse

...rk in Dreamweaver and Eclipse when developing. I think Dreamweaver has a really nice search where you can search for text within all files of your current project. ...
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.htaccess redirect all pages to new domain

Which redirect rule would I use to redirect all pages under olddomain.example to be redirected to newdomain.example ? 18...
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Disable Laravel's Eloquent timestamps

...this moment we don't want to add the updated_at / created_at fields to all of our tables as we have a logging class that does all this in more depth for us already. ...
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CSS background opacity with rgba not working in IE 8

...tydot), and which matches the transparency of your background. EDIT : to fall back for IE6+ support, you can specify bkgd chunk for the png, this is a color which will replace the true alpha transparency if it is not supported. You can fix it with gimp eg. ...
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PHPUnit: assert two arrays are equal, but order of elements not important

... Craig, you're close to what I tried originally. Actually array_diff is what I needed, but it doesn't seem to work for objects. I did write my custom assertion as explained here: phpunit.de/manual/current/en/extending-phpunit.html – koen ...
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BLE(二)信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区,...

...。 Service和Characteristic则是比较重要的,Service可以理解为PHP中的“类”、功能对象的集合。Characteristic可以理解为PHP的“函数”,是GATT中具体的功能对象,每个Service都可以包含一个或多个Characteristic(特征)。Characteristic是GATT pr...
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When to encode space to plus (+) or %20?

...value is query value with a space, but the folder name in the path is literally foo+bar, not foo bar. %20 is a valid way to encode a space in either of these contexts. So if you need to URL-encode a string for inclusion in part of a URL, it is always safe to replace spaces with %20 and pluses with ...