SQL

SQL is a database language developed by Donald D. Chamberlin and Raymond F. Boyce at IBM. SQL is designed to maintain and retrieve data in the Relational Database Management System.

SELECT
SELECT * FROM ( SELECT    RANK OVER (ORDER BY age ASC) AS ranking,    person_id,    person_name,    age  FROM person ) AS foo WHERE ranking <= 10

developerWorks Article

 * The SQL Reference for Cross-Platform Development
 * DB2 Basics: Fun with Dates and Times
 * Generate test data using SQL
 * High-performance SQL
 * Migrating Recursive SQL from Oracle to DB2 UDB
 * SQL & XQuery tutorial for IBM DB2 series
 * SQL SERVER TRAINING
 * http://www.learn-sql-tutorial.com/

Also See

 * SQL-PL
 * SQLs How to