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Select specific groups using DENSE_RANK

By , 07/01/2009 10:05 AM

Imagine after running a query like this:

SELECT ContactName, Country FROM Customers ORDER BY Country

on Northwind database and getting following result:

ContactName           Country
Patricio Simpson      Argentina
Yvonne Moncada        Argentina
Sergio Gutiérrez      Argentina
Georg Pipps           Austria
Roland Mendel         Austria
Catherine Dewey       Belgium
Pascale Cartrain      Belgium
Anabela Domingues     Brazil
Paula Parente         Brazil
Bernardo Batista      Brazil
Lúcia Carvalho        Brazil
Janete Limeira        Brazil
Aria Cruz             Brazil
André Fonseca         Brazil
Mario Pontes          Brazil
Pedro Afonso          Brazil
Elizabeth Lincoln     Canada
Jean Fresnière        Canada
Yoshi Tannamuri       Canada
...

You’re asked to retreive only the 2nd and the 5th group of contacts. How do you do it? Continue reading 'Select specific groups using DENSE_RANK'»

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