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What is the difference between a database and a data warehouse?

...CᴴᴀZ for what ? Datamart are created for the OLAP , Datamart is bassically a small DWH (for a small part of the business) . it is created for Analysis so if you need a OLTP System a Datamart is not your choice , if you need a Data-Model for Analysis (Start Schema or Snow flow) then you would p...
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How does akka compare to Erlang? [closed]

...ed that guys here compare Scala with Erlang. Also there are many other so called "killer features", but here is my advice, do not think in terms of features, think about idioms that enables particular language. Scala steals "best features", Erlang enables/implements you with right idioms to build s...
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Twitter Bootstrap vs jQuery UI? [closed]

...and looks good in old browsers, where Bootstrap is based on CSS3 which basically means GREAT in new browsers, not so great in old Update frequency: Bootstrap is getting some great big updates with awesome new features, but sadly they might break previous code, so you can't just install bootstrap and...
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Numpy: find first index of value fast

...ch is annoying, but it's really just 2 minutes of work. Add this to a file called search.f90: subroutine find_first(needle, haystack, haystack_length, index) implicit none integer, intent(in) :: needle integer, intent(in) :: haystack_length integer, intent(in), dimension(haystack_le...
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Is LINQ to SQL Dead or Alive?

... @Aaron, yes, they use hand-written SQL with their own micro-ORM called Dapper. They might still use LINQ-to-SQL on the less popular sections of the site. – CMircea Aug 8 '12 at 21:12 ...
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decompiling DEX into Java sourcecode

...ool to extract all the (compiled) classes on the DEX to a JAR. There's one called dex2jar, which is made by a chinese student. Then, you can use jd-gui to decompile the classes on the JAR to source code. The resulting source should be quite readable, as dex2jar applies some optimizations. Automati...
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Is there a standard function to check for null, undefined, or blank variables in JavaScript?

... Just want to add that if you feel the if construct is syntactically too heavy, you could use the ternary operator, like so: var result = undefined ? "truthy" : "falsy". Or if you just want to coerce to a boolean value, use the !! operator, e.g. !!1 // true, !!null // false. ...
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Visual C++: How to disable specific linker warnings?

...r references to link in the libraries from) and have all the 20 .pdb files called the same thing. My solution was to go and rebuild my static library files, and configure VS2010 to name the .pdb file with respect to the PROJECT. This way, each .lib gets a similarly named .pdb, and you can put all ...
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TDD vs. Unit testing [closed]

...: what users are doing normally, which includes the bad results which some call "reported bugs". If a bug is confirmed, at least one test gets written! the bigger the project and the bigger the team, the more this is important. – DaFi4 May 17 '16 at 14:38 ...
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Git pull results in extraneous “Merge branch” messages in commit log

... to use rebasing instead of merging is possible, but usually you should avoid it. Rebasing allows you to keep a linear history, but also removes any information about the branching that originally happened. It will also cause the history of the current branch being rewritten, recreating all commits ...