Returning multiple records from the DB

Hi all,
Can anybody tell me how to return multiple result set using stored procudure. For example "select * from users" works in SQL Plus, but we can't use it in a stored procedure. Any alternative to extract multiple result set from the DB.

Tom Kyte explains this en detail here:
Result Sets from Stored Procedures In Oracle
http://asktom.oracle.com/~tkyte/ResultSets/index.html

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