大约有 30,000 项符合查询结果（耗时：0.0305秒） [XML]
MetadataException: Unable to load the specified metadata resource
...ring, despite my efforts to compare it with a content-compare utility last time, was wrong.
– J. Steen
Apr 29 '09 at 11:26
17
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How to combine date from one field with time from another field - MS SQL Server
In an extract I am dealing with, I have 2 datetime columns. One column stores the dates and another the times as shown.
1...
How to find third or nth maximum salary from salary table?
... table. If I use the above query , the performance will be reduced by 6-10 times.
– Bimal Das
Nov 27 '17 at 6:50
1
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split string only on first instance - java
...ment, namely this string.
The limit parameter controls the number of times the pattern is applied and therefore affects the length of the resulting array. If the limit n is greater than zero then the pattern will be applied at most n - 1 times, the array's length will be no greater than n, an...
Why does C++ need a separate header file?
...der files.
The reasons you might want to separate are:
To improve build times.
To link against code without having the source for the definitions.
To avoid marking everything "inline".
If your more general question is, "why isn't C++ identical to Java?", then I have to ask, "why are you writing...
How do I get the Git commit count?
...ensive, merely factual. Point taken about the date of the response. At the time, your solution may very well have been the best available one. But I stand by my statement that git rev-list HEAD --count is a better solution now.
– ctrueden
Mar 23 '13 at 16:36
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Hidden features of Scala
...3[Int, Double, String] which can match the pattern (a, b, c).
Most of the time your patterns use extractors that are members of singleton objects. For example, if you write a pattern like
Some(value)
then you're implicitly calling the extractor Some.unapply.
But you can also use class instance...
Split array into chunks
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@Blazemonger, indeed! Next time I will actually try it myself before jumping to conclusions. I assumed (incorrectly) that passing an input into array.slice that exceeded the bounds of the array would be a problem, but it works just perfect!
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
... of comparison more space-efficient, which was of utmost importance at the time the standard was developed — note, however, that this is violated for x = y = infinity, so it’s not a great reason on its own; it could have reasonably been bent to (x - y == 0) or (x and y are both NaN)).
More impor...
C# operator overload for `+=`?
...ssions down to the same bytecode, meaning that it's very likely the the runtime can't treat them differently during program execution.
I can understand that you might want to treat it like a separate operation: in an statement like x += 10 you know that you can mutate the x object in place and perh...