With SQL (Structured Query Language) you can create tables within a database, add and delete data, query for information, change system settings, and trigger actions based on changes to the database. Whether you're a programmer, administrator, or database designer, Sams Teach Yourself SQL in 21 Days, Second Edition provides all the information needed to fully understand this powerful tool and use it to its fullest potential. Using step-by-step instructions, real-world examples, and expert advice, you'll improve your productivity and take your skills to new heights.
Ryan K. Stephens currently works for Unisys Federal Systems, where he is a database administrator and is responsible for government-owned databases throughout the United States. In addition to his full-time job, Ryan teaches SQL and various database classes at Indiana University-Purdue University Indianapolis. He also serves part-time as a programmer for the Indiana Army National Guard. Ronald R. Plew is a database administrator for Unisys Federal Systems. He is an instructor of Indiana University-Purdue University Indianapolis where he teaches SQL and various database classes. Ron also serves as a programmer for the Indiana Army National Guard.