Sams Teach Yourself SQL in 21 Days, Fourth Edition provides a solid foundation in understanding the fundamentals of SQL (Structured Query Language). SQL is the query language used by relational databases such as Oracle, Microsoft® Access™, and Microsoft® SQL Server™. The new edition covers object-oriented programming with SQL, ODBC, JDBC, embedded SQL, accessing remote databases, and constructs. All new examples based on an open source database, such as MySQL, enhance this new edition by making the examples readily useable for readers.

Ryan Stephens and Ron Plew are President and Vice President of Perpetual Technologies, Inc., where their duties include Oracle® database administration and consulting and training in Oracle, SQL, and UNIX. They have both been teaching at the college level for over five years as adjunct professors at Indiana University-Purdue University in Indianapolis. Both are Oracle Certified Professionals. Ryan and Ron have co-authored the following successful books: Sams Teach Yourself SQL in 24 Hours, Second Edition, 0672318997, Sams, 3/00, and Sams Teach Yourself SQL in 21 Days, Third Edition, 0672316749, Sams, 12/99.