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JPA: what is the proper pattern for iterating over large result sets?

Let's say I have a table with millions of rows. Using JPA, what's the proper way to iterate over a query against that table, such that I don't have all an in-memory List with millions of objects? ...
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Mysql - How to quit/exit from stored procedure

I have very simple question but i did't get any simple code to exit from SP using Mysql. Can anyone share with me how to do that? ...
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Rails - Could not find a JavaScript runtime?

I created a new Rails project using rails 3.1.0.rc4 on my local machine but when I try to start the server I get: Could not find a JavaScript runtime. See here for a list of available runtimes. ( ExecJS::RuntimeUnavailable ) ...
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What is the command to exit a Console application in C#?

What is the command in C# for exit a Console Application? 4 Answers 4 ...
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Easiest way to check for an index or a key in an array?

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Push Notifications in Android Platform

I am looking to write an app that receives pushed alerts from a server. I found a couple of methods to do this. 20 Answer...
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Foreach loop, determine which is the last iteration of the loop

I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.: 26 Answers ...
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How to explicitly discard an out argument?

I'm making a call: 8 Answers 8 ...
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How do I get the list of keys in a Dictionary?

I only want the Keys and not the Values of a Dictionary. 9 Answers 9 ...
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Skip certain tables with mysqldump

Is there a way to restrict certain tables from the mysqldump command? 10 Answers 10 ...