大约有 31,100 项符合查询结果(耗时:0.0552秒) [XML]

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How do you perform a left outer join using linq extension methods

...ought I would add an alternative to the currently selected answer that (in my experience at least) has been more commonly what I'm after // Option 1: Expecting either 0 or 1 matches from the "Right" // table (Bars in this case): var qry = Foos.GroupJoin( Bars, foo => foo.Foo_...
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Post data to JsonP

... I know this is serious necromancy, but I thought I'd post my implementation of JSONP POST using jQuery, which I'm successfully using for my JS widget (this is used for customer registration and login): Basically, I'm using an IFrame approach, as suggested in the accepted answer. Wh...
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LEN function not including trailing spaces in SQL Server

...ot) is a better option. Maybe is there a near to zero performance hit with my method though. – Serge Mar 25 '13 at 12:35 5 ...
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How do you extract a column from a multi-dimensional array?

...le: (Allocating a array with shaping of matrix (3x4)) nrows = 3 ncols = 4 my_array = numpy.arange(nrows*ncols, dtype='double') my_array = my_array.reshape(nrows, ncols) share | improve this answer...
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Bash: Syntax error: redirection unexpected

... Docker: I was getting this problem from my Dockerfile as I had: RUN bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer) However, according to this issue, it was solved: The exec form makes it possible t...
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Why are two different concepts both called “heap”?

... I have no reference for this but my guess would be that initially the data structure used to organize references to open blocks of memory was a min heap. Seems like it would be at least a decent way of quickly finding the smallest block of memory that would ...
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PostgreSQL function for last inserted ID

...no risk of race conditions (if another session inserts another row between my INSERT and my SELECT, I still get my correct value). However they do have a subtle potential problem. If the database has some TRIGGER (or RULE) that, on insertion into persons table, makes some extra insertions in other ...
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Populate nested array in mongoose

... @TrinhHoangNhu I didn't 4.0 Release Note, but i was tried. My query don't return anything if i run it as mongoose 4.0, but it worked fine when i upgrade to 4.5.8 version. My query: gist.github.com/NgaNguyenDuy/998f7714fb768427abf5838fafa573d7 – NgaNguyenDuy ...
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Why is UICollectionViewCell's outlet nil?

... I don't understand why this was down voted. This was the answer to my problem. – Félix Simões Jun 24 '15 at 9:17 1 ...
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Relative paths in Python

...n running the file directly. If so, that doesn't appear to be the case on my system (python 2.5.1 on OS X 10.5.7): #foo.py import os print os.getcwd() print __file__ #in the interactive interpreter >>> import foo /Users/jason foo.py #and finally, at the shell: ~ % python foo.py /Users/j...