Question: This assignment uses the CH08SURGERY table. If you did not create the table while working in this chapter, create it now by using SQL*Plus Worksheet

This assignment uses the CH08SURGERY table. If you did not create the table while working in this chapter, create it now by using SQL*Plus Worksheet to run the create_table.sql file in the Data\Chapter08 directory on your student disk. Analyze the CH08SURGERY table.

Write one or more queries on data dictionary view(s) to answer these questions:

? How many rows are in the table?

? What is the average length of a row in the table?

? How many columns have no values in any rows? ? What is the average length of the DOCTOR_NAME column?

? How many distinct values are there in the PATIENT_FIRST_NAME and PATIENT_ LAST_NAME columns?

? What is the segment name and extent ID of the tables segment and extent? Save your SQL commands in a file named ho0803.sql in the Solutions\Chapter08 directory on your student disk.

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