SQL components; front-end components; data definition statement; simple queries; complex queries; updating a table; procedures; views; query optimized; system catalogue; authorization; procedural integrity; transactions; system environment; DB library; system adminstration; system installation; managing system resources; user management; database backup and restore; data transfer; automation of system adminstration jobs; error recovery; performance tuning; data replication; data warehousing; front-end extensions for MS OLAP Server; MS OLAP Server.