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JPA or JDBC, how are they different?

I am learning Java EE and I downloaded the eclipse with glassfish for the same. I saw some examples and also read the Oracle docs to know all about Java EE 5. Connecting to a database was very simple. I opened a dynamic web project, created a session EJB , I used EntityManager and with the get meth...
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A fast method to round a double to a 32-bit int explained

When reading Lua's source code, I noticed that Lua uses a macro to round a double to a 32-bit int . I extracted the macro , and it looks like this: ...
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Oracle PL/SQL - How to create a simple array variable?

I'd like to create an in-memory array variable that can be used in my PL/SQL code. I can't find any collections in Oracle PL/SQL that uses pure memory, they all seem to be associated with tables. I'm looking to do something like this in my PL/SQL (C# syntax): ...
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How do you redirect to a page using the POST verb?

When you call RedirectToAction within a controller, it automatically redirects using an HTTP GET. How do I explicitly tell it to use an HTTP POST? ...
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How does git store files?

I just started learning git and to do so I started reading the Git Community Book , and in this book they say that SVN and CVS store the difference between files and that git stores a snapshot of all the files. ...
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Center/Set Zoom of Map to cover all visible Markers?

I am setting multiple markers on my map and I can set statically the zoom levels and the center but what I want is, to cover all the markers and zoom as much as possible having all markets visible ...
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Emulating a do-while loop in Bash

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What are conventions for filenames in Go?

I could find the conventions for naming packages in Go: no underscore between words, everything lowercase. 4 Answers ...
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Static and Sealed class differences

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What is the proper way to URL encode Unicode characters?

I know of the non-standard %uxxxx scheme but that doesn't seem like a wise choice since the scheme has been rejected by the W3C. ...