Database Reference
In-Depth Information
Figure 1.21
iSQL*Plus Is a
Rich Environment.
8.
Exit the iSQL*Plus browser by clicking Logout link, and then
clicking the X in the top right corner when you see the iSQL*Plus
login screen.
Note:
See Chapter 8 if you cannot reach the iSQL*Plus login screen.
1.7
The MUSIC Schema
The sample data described here will be used as a basis to write your own
SQL commands as you follow along with step-by-step exercises in every
chapter.
Figure 1.22 shows the database design structure of the tables, includ-
ing their primary keys (the columns that define a unique record) and their
columns.
This schema supports a fictional music studio. The music studio keeps
track of the musicians who use the studio and the time they spend in the
studio recording songs. Here is a short description of each table:
