دانلود کتاب Sams teach yourself SQL in 24 hours

Sams Teach Yourself SQL in 24 Hours, Second Edition Learn how to...*Build and manage relational database objects; *Effectively query the database; *Master functions and clauses to query data; *Manage database transactions; *Summarize data with views; *Uncover ways to summarize, sort and group, and restructure the appearance of data; *Performance tune SQL statements; *Use SQL to implement database security. Get Started Now! 24 proven one-hour lessons In just 24 sessions of one hour or less, you will be up and running with SQL. Using a straightforward, step-by-step approach, each lesson builds on the previous one, allowing you to learn the essentials of SQL from the ground up. *Tips point out shortcuts and solutions; *Notes clarify concepts and procedures in a straightforward manner; *Cautions help you avoid common pitfalls. Ryan Stephens and Ronald Plew are President and Vice President of Perpetual Technologies, Inc., where their duties include Oracle database administration and consulting and Oracle, SQL, and UNIX training. They have both been teaching at the collegiate level for over three years as adjunct professors at Indiana University-Purdue University in Indianapolis. Both are Oracle Certified Professionals, having specialized in Oracle and UNIX for more than 10 years each. Ryan and Ron have co-authored other books for Sams including Sams Teach Yourself SQL in 21 Days, Second Edition and Third Edition, Oracle Unleashed, Second Edition, Oracle Development Unleashed, and Oracle8 Server Unleashed