大约有 34,000 项符合查询结果（耗时：0.0228秒） [XML]
Throttling method calls to M requests in N seconds
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Michael BorgwardtMichael Borgwardt
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Is there any difference between GROUP BY and DISTINCT
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answered Oct 2 '08 at 20:52
SkeolanSkeolan
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Precise Financial Calculation in JavaScript. What Are the Gotchas?
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answered May 20 '10 at 18:14
Daniel VassalloDaniel Vassallo
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How do you return the column names of a table?
How would I return the column names of a table using SQL Server 2008? i.e. a table contains these columns- id, name, address, country and I want to return these as data.
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What is JSON and why would I use it?
... the callback, but this is not suggested since there are two characters (U+2028 & U+2029) valid in JSON but not in JavaScript (read more of this here).
Therefore, one must always try to use Crockford's script that checks for a valid JSON before evaluating it. Link to the script explanation is ...
When is a CDATA section necessary within a script tag?
...issue.
For a good writeup on the subject, see https://web.archive.org/web/20140304083226/http://javascript.about.com/library/blxhtml.htm
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How to convert a factor to integer\numeric without loss of information?
...mean median uq max neval
## as.numeric(levels(f))[f] 3.982 5.120 6.088624 5.405 5.974 1981.418 1e+05
## as.numeric(levels(f)[f]) 5.973 7.111 8.352032 7.396 8.250 4256.380 1e+05
## as.numeric(as.character(f)) 6.827 8.249 9.628264 8.534 9.671 1983.694 1e+05
## ...
How to use z-index in svg elements?
... be drawn. So swap the two elements.
<svg xmlns="http://www.w3.org/2000/svg" viewBox="30 70 160 120">
<!-- First draw the orange circle -->
<circle fill="orange" cx="100" cy="95" r="20"/>
<!-- Then draw the green circle over the current canvas -->
<...
What's the rationale for null terminated strings?
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answered Dec 11 '10 at 20:25
Hans PassantHans Passant
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