大约有 10,000 项符合查询结果(耗时:0.0253秒) [XML]
Is there a performance difference between CTE , Sub-Query, Temporary Table or Table Variable?
...elling the SQL engine how to do the work.
As a general rule, it is a good idea to let the SQL engine and SQL optimizer find the best query plan. There are many person-years of effort that go into developing a SQL engine, so let the engineers do what they know how to do.
Of course, there are situa...
What is a git topic branch?
...e following paragraph where you describe "remote branches" re-inforces the idea that the "created locally" part of a topic branch is important. I suggest re-focusing this answer to de-emphasize these unrelated branch traits.
– Jean-Paul Calderone
Jan 5 '14 at ...
Simplest way to detect a mobile device in PHP
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How does Facebook disable the browser's integrated Developer Tools?
...r console.
Just to be clear: trying to block hackers client-side is a bad idea in general;
this is to protect against a specific social engineering attack.
If you ended up in the test group and are annoyed by this, sorry.
I tried to make the old opt-out page (now help page) as simple as possible ...
Can enums be subclassed to add new elements?
...ything else, d would then presumably be an instance of A (given the normal idea of "extends"), but users who only knew about A wouldn't know about it - which defeats the point of an enum being a well-known set of values.
If you could tell us more about how you want to use this, we could potentially...
What to do about a 11000 lines C++ source file?
... @Martin: fortunately you haven't pasted your file here, so I have no idea about its structure. But general idea is to split it in logical parts. Such logical parts could contain groups of functions from your "main class" or you could split it in several auxiliary classes.
...
How do I parse an ISO 8601-formatted date?
...set (namely "Z", which means +00:00) into the format string. This is a bad idea because it will fail to parse any datetime with a different UTC offset and raise an exception. See my answer that describes how parsing RFC 3339 with strptime is in fact impossible.
– Mark Amery
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How to handle the modal closing event in Twitter Bootstrap?
...vents, all my two modals closes. It was working properly before. I have no idea what I should do to solve it. Can you help me with an idea of how I should look on the web for the solution? Thank you!
– Renee Maksoud
Sep 11 at 3:57
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How do I detect unsigned integer multiply overflow?
...
};
return bits;
}
It's not perfect, but that'll give you a good idea whether any two numbers could overflow before you do the operation. I don't know whether it would be faster than simply checking the result the way you suggested, because of the loop in the highestOneBitPosition function...
Error handling principles for Node.js + Express.js applications?
...an application which will try very hard to never crash. This is a terrible idea in nearly every use-case, because it will leave the developer without any idea of what's going on in the application state and is analogous to wrapping main in try-catch.
Domains - grouping events logically
As part of ...