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What is the difference between a database and a data warehouse?
...Base :-
OLTP(online transaction process)
It is current data, up-to-date detailed data, flat relational
isolated data.
Entity relationship is used to design the database
DB size 100MB-GB simple transaction or quires
Datawarehouse
OLAP(Online Analytical process)
It is about Historical data S...
Call a Server-side Method on a Resource in a RESTful Way
...ext": x_n,
"frequency": 10
}
Treat the cron job as an implementation detail that the server hides from the interface. That's the beauty of a generic interface. The client doesn't have to know what the server does behind the scenes; all it cares about is that the service understands and respond...
An invalid form control with name='' is not focusable
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Thanks for the detailed answer. Omitting required or adding novalidate is never a good workaround.
– fatCop
May 31 '15 at 11:20
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jQuery Validate - Enable validation for hidden fields
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Thank you for the detailed answer!
– davidallyoung
Feb 20 '15 at 17:47
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
I searched the web on some technical details about blocking I/O and non blocking I/O and I found several people stating that non-blocking I/O would be faster than blocking I/O. For example in this document .
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What's the best way of implementing a thread-safe Dictionary?
...u can run into with thread safety. Check out Eric Lippert's Blog for more details.
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Primary key or Unique index?
...replicate tables without primary keys in MSSQL, at least without problems (details).
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Performance of Java matrix math libraries? [closed]
...re computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question:
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Why can a class not be defined as protected?
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@Nikita Rybak answer has good points but lack of details, i can't simply get the idea without think deeply myself, the following is what i thought and now i should completely understood the reason.
Four access modifiers, assume the 1st level is public and 4th level is priv...
How is Python's List Implemented?
...ke it impossible to write efficient code without relying on implementation details?
– sepp2k
Oct 12 '10 at 18:02
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