大约有 31,100 项符合查询结果(耗时:0.0552秒) [XML]
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_...
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...
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
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improve this answer...
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...
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 ...
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 ...
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
...
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...
