上QQ阅读APP看书，第一时间看更新
Getting started with application design
The design for our radio station will start with a Radio Show table, a Radio Show Card page, a Radio Show List page, and a simple Radio Show List report. Along the way, we will review the basics of each NAV object type.
When we open the NAV Development Environment for the first time or to work on a different database, we must define what database should be opened. Click on File | Database | Open... and then choose a database:
