Once you get your data into your database, how do you get the data out again?
A database becomes really valuable when you use the data it contains as a resource to answer questions or perform tasks.
Whether it's comparing weekly sales figures, tracking packages, finding all the members of your club who live in Texas, or a multitude of other scenarios, a query can help you retrieve data and put it to good use.
To learn more about this course, read the overview in the center of this page or the table of contents in the left column. Then click Next to start the first lesson.