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SQL Server: Difference between PARTITION BY and GROUP BY
...A group by normally reduces the number of rows returned by rolling them up and calculating averages or sums for each row. partition by does not affect the number of rows returned, but it changes how a window function's result is calculated.
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how to install gcc on windows 7 machine?
I have MinGW on my windows 7 machine. I wish to install and use complete gcc for C compiler. I found there is no single pre-compiled ready-made installation file for this purpose. I checked the following page : http://gcc.gnu.org/install/
It is difficult and I find it above my level of understandi...
Fastest Way to Serve a File Using PHP
...receives a file path, identifies what it is, sets the appropriate headers, and serves it just like Apache would.
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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...It does not stop a pipeline or a loop from continuing. Throw on the other hand produces what is called a terminating error. If you use throw, the pipeline and/or current loop will be terminated. In fact all execution will be terminated unless you use a trap or a try/catch structure to handle the ter...
What does it mean by buffer?
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Imagine that you're eating candy out of a bowl. You take one piece regularly. To prevent the bowl from running out, someone might refill the bowl before it gets empty, so that when you want to take another piece, there's candy in the bowl.
The bowl ac...
Places where JavaBeans are used?
What is a JavaBean and why do I need it? Since I can create all apps with the class and interface structure? Why do I need beans? And can you give me some examples where beans are essential instead of classes and interfaces?
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Closing JDBC Connections in Pool
Our standard code section for using JDBC is...
3 Answers
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Is cout synchronized/thread-safe?
...ate locking. However, do things like cout get special treatment in the standard library?
4 Answers
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Git Cherry-pick vs Merge Workflow
Assuming I am the maintainer of a repo, and I want to pull in changes from a contributor, there are a few possible workflows:
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Emacs mode for Stack Overflow's markdown
I am using Org-mode in Emacs to handle all my technical documentation. I would like to use Emacs to prepare questions that I have for Stack Overflow. Is there an Emacs mode for that, or even better, an extension for Org-mode to handle Stack Overflow formatting? Ideally it should include all formatti...