Sams Teach Yourself SQL in 21 Days, Fourth Edition

Day 12. Controlling Transactions

You have spent the last 11 days learning virtually everything that you can do with data within a relational database. For example, you know how to use the SQL SELECT statement to retrieve data from one or more tables based on a number of conditions supplied by the user. You have also had a chance to use data-modification statements such as INSERT, UPDATE, and DELETE. As of today, you have become an intermediate level SQL and database user. If required, you could build a database with its associated tables, each of which would contain several fields of different data types. Using proper design techniques, you could leverage the information contained within this database into a powerful application.

If you are ...