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Grouped LIMIT in PostgreSQL: show the first N rows for each group?

I need to take the first N rows for each group, ordered by custom column. 5 Answers 5 ...
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xUnit.net: Global setup + teardown?

This question is about the unit testing framework xUnit.net . 4 Answers 4 ...
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How to safely open/close files in python 2.4

I'm currently writing a small script for use on one of our servers using Python. The server only has Python 2.4.4 installed. ...
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Difference between \w and \b regular expression meta characters

Can anyone explain the difference between \b and \w regular expression metacharacters? It is my understanding that both these metacharacters are used for word boundaries. Apart from this, which meta character is efficient for multilingual content? ...
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jQuery callback for multiple ajax calls

I want to make three ajax calls in a click event. Each ajax call does a distinct operation and returns back data that is needed for a final callback. The calls themselves are not dependent on one another, they can all go at the same time, however I would like to have a final callback when all three ...
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Read only the first line of a file?

How would you get only the first line of a file as a string with Python? 8 Answers 8 ...
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SQL DELETE with INNER JOIN

There are 2 tables, spawnlist and npc , and I need to delete data from spawnlsit . npc_templateid = n.idTemplate is the only thing that "connect" the tables. I have tried this script but it doesn't work. ...
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How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?

I'm using a transaction model to keep track all the events going through the system 2 Answers ...
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Android: “Path for project must have only one segment”

I just setup the NotePad sample project as described here, but when I try to launch it (Ctrl+F11) I received the following error message box: ...
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How to use Greek symbols in ggplot2?

My categories need to be named with Greek letters. I am using ggplot2 , and it works beautifully with the data. Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it? ...