大约有 5,476 项符合查询结果(耗时:0.0159秒) [XML]

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Distributed sequence number generation?

... +100 OK, this is a very old question, which I'm first seeing now. You'll need to differentiate between sequence numbers and unique IDs t...
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SQL Joins Vs SQL Subqueries (Performance)?

...at will help a lot...) among other things. The only REAL way to tell with 100% certainty which is faster is to turn on performance tracking (IO Statistics is especially useful) and run them both. Make sure to clear your cache between runs! ...
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Locking a file in Python

... +100 Alright, so I ended up going with the code I wrote here, on my website link is dead, view on archive.org (also available on GitHub)....
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How to move an iFrame in the DOM without losing its state?

...tion(){ document.getElementsByTagName('body')[0].appendChild(wrap1); },10000); share | improve this answer | follow | ...
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Using Default Arguments in a Function

...; 'cow.png', 'alt' => 'milk factory', 'height' => 100, 'width' => 50 ); $img = array_merge($defaults, $img); /* ... */ } share | improve this answe...
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width:auto for fields

.... The default size is what's driving the auto width. You could try width:100% as illustrated in my example below. Doesn't fill width: <form action='' method='post' style='width:200px;background:khaki'> <input style='width:auto' /> </form> Fills width: <form action='' me...
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Setting default values for columns in JPA

...r example: @Column(name="Price", columnDefinition="Decimal(10,2) default '100.00'") share | improve this answer | follow | ...
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How can I center an absolutely positioned element in a div?

...han the 50% screensize. I solved this by setting the outer div to "width: 100%" and removing the left property. For the inner div, I simply set my text-align to center. This solves the issue. – Nicky L. Jan 22 '14 at 16:14 ...
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Event listener for when element becomes visible?

...erval(poll); } else { previous_style = current_style; } }, 100); The DOM standard also specifies mutation events, but I've never had the chance to use them, and I'm not sure how well they're supported. You'd use them like this: target.addEventListener('DOMAttrModified', function()...
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How to shrink the .git folder

...RELEASE-1.4.0 is tip) using git-remote-hg and this yielded a repo of about 100MB. Using git gc --aggressive --prune brought this down to 19MB. – Lekensteyn Apr 25 '13 at 14:42 16 ...