Before SQL programmers could begin working with OLTP (On-Line Transaction Processing) systems, they must forget procedural, record-oriented programming before moving to SQL's declarative programming, set-oriented. OLAP (On-Line Analytical Processing), Data Warehousing and Analytics involve seeing data as a whole and from time to time, not as a single transaction. * Advice from the experts noted SQL authority and award-winning columnist, who has given ten years of service to the ANSI SQL standards committee and is more reliable for years to help readers online forums. * First book that teaches what SQL programmers need in order to successfully make the transition from transaction systems (OLTP) into the world of data warehouse and OLAP data.