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INNER JOIN vs LEFT JOIN performance in SQL Server
...NNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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Disable Automatic Reference Counting for Some Files
...The ARC converter doesn't work here, because some frameworks, such as JSONKit, cannot be converted to ARC by using the converter.
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Why doesn't C# support the return of references?
...he great question!
The C# team is considering this for C# 7. See https://github.com/dotnet/roslyn/issues/5233 for details.
UPDATE: The feature made it in to C# 7!
You are correct; .NET does support methods that return managed references to variables. .NET also supports local variables that cont...
Compiling a java program into an executable [duplicate]
I've just made a simple program with Eclipse and I want to compile it into an executable, but simply can't seem to find out how to do it.
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Why is jquery's .ajax() method not sending my session cookie?
After logging in via $.ajax() to a site, I am trying to send a second $.ajax() request to that site - but when I check the headers sent using FireBug, there is no session cookie being included in the request.
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git status shows modifications, git checkout — doesn't remove them
I would like to remove all changes to my working copy.
Running git status shows files modified.
Nothing I do seems to remove these modifications.
E.g.:
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Can an html element have multiple ids?
I understand that an id must be unique within an HTML/XHTML page.
18 Answers
18
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Simpler way to create dictionary of separate variables?
... as a string but I don't know if Python has that much introspection capabilities. Something like:
27 Answers
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How to detect if a stored procedure already exists
I have to write a deployment script which will work if a stored procedure exists or does not exist. i.e. if it exists, then I need to alter it, otherwise create it.
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Object-orientation in C
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C Object System (COS) sounds promising (it's still in alpha version). It tries to keep minimal the available concepts for the sake of simplicity and flexibility: uniform object oriented programming including open classes, metaclasses, property metaclasses, generics...