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SQL Server: What is the difference between CROSS JOIN and FULL OUTER JOIN?
... matches between the two tables, as use of indexes means it doesn't bother reading all the rows on one of the tables. a full outer join must always read all rows in both tables (or the relevant indexes). In the case where indexes are not enough, or an underlying heap has to be read to output the nee...
How to set commands output as a variable in a batch file
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I found this thread on that there Interweb thing. Boils down to:
@echo off
setlocal enableextensions
for /f "tokens=*" %%a in (
'VER'
) do (
set myvar=%%a
)
echo/%%myvar%%=%myvar%
pause
endlocal
You can also redirect the output...
Java Generics: Cannot cast List to List? [duplicate]
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@CDT: Ah, I see. I suggest you read a Java generics tutorial then - you'll see it quite a lot :)
– Jon Skeet
Nov 27 '14 at 11:45
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Difference between static class and singleton pattern?
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What makes you say that either a singleton or a static method isn't thread-safe? Usually both should be implemented to be thread-safe.
The big difference between a singleton and a bunch of static methods is that singletons can implement interfaces (or derive from useful base classes, although ...
How to convert image to byte array
... way to get Byte array from image path is
byte[] imgdata = System.IO.File.ReadAllBytes(HttpContext.Current.Server.MapPath(path));
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Are list-comprehensions and functional functions faster than “for loops”?
...e visual complexity of the code).
Chances are, if code like this isn't already fast enough when written in good non-"optimized" Python, no amount of Python level micro optimization is going to make it fast enough and you should start thinking about dropping to C. While extensive micro optimization...
Programmatically saving image to Django ImageField
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Even reading a binary file on OSX, this 'rb' works like magic! Thanks
– xjlin0
Aug 19 at 16:37
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What is the equivalent of MATLAB's repmat in NumPy
...le asking to manipulate the input matrix along the dimensions the matrix already has.
Thus the two commands
repmat(M,m,n) % matlab
np.tile(M,(m,n)) # python
are really equivalent for a matrix of rank 2 (two dimensions).
The matters goes counter-intuitive when you ask for repetition/tiling o...
Is there a Java API that can create rich Word documents? [closed]
...ork).
OpenOffice UNO also lets you build MS-Office-compatible charts, spreadsheets, presentations, etc. We were able to dynamically build sophisticated Word documents, including charts and tables.
We simplified the process by using template MS-Word documents with bookmark inserts into which t...
Guava equivalent for IOUtils.toString(InputStream)
Apache Commons IO has a nice convenience method IOUtils.toString() to read an InputStream to a String.
9 Answers
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