Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3MC
Which of the following is not a correct statement?
- a.A table can be modified only if it doesn’t contain any rows of data.
- b. The maximum number of characters in a table name is 30.
- c.You can add more than one column at a time to a table.
- d. You can’t recover data contained in a table that has been truncated.
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Which of the following is not a correct statement?a. A table can be modified only if it doesn’t contain any rows of data.b. The maximum number of characters in a table name is 30.c. You can add more than one column at a time to a table.d. You can’t recover data contained in a table that has been truncated.
2.7 LAB - Alter Movie table
The Movie table has the following columns:
ID - integer, primary key
Title - variable-length string
Genre - variable-length string
RatingCode - variable-length string
Year - integer
Write ALTER statements to make the following modifications to the Movie table:
Add a Producer column with VARCHAR data type (max 50 chars).
Remove the Genre column.
Change the Year column's name to ReleaseYear, and change the data type to SMALLINT.
Which function determines the number of rows in a table?
a.
ROW
b.
CALCULATE
c.
COUNT
d.
NUMBER
Chapter 3 Solutions
Oracle 12c: SQL
Ch. 3 - Which command is used to create a table based on...Ch. 3 - Prob. 2RQCh. 3 - What guidelines should you follow when naming...Ch. 3 - What is the difference between dropping a column...Ch. 3 - Prob. 5RQCh. 3 - What happens to the existing rows of a table if...Ch. 3 - Explain the difference between truncating a table...Ch. 3 - Prob. 8RQCh. 3 - What happens if you try to decrease the scale or...Ch. 3 - Are a table and the data contained in the table...
Ch. 3 - Which of the following is a correct statement?
You...Ch. 3 - Prob. 2MCCh. 3 - Which of the following is not a correct...Ch. 3 - Which of the following is not a valid SQL...Ch. 3 - Which of the following is true? a. If you truncate...Ch. 3 - Which of the following commands creates a new...Ch. 3 - Which of the following commands drops any columns...Ch. 3 - Which of the following statements is correct?
A...Ch. 3 - Which of the following commands removes all data...Ch. 3 - Which of the following commands changes a table’s...Ch. 3 - Prob. 11MCCh. 3 - Which of the following is not a valid...Ch. 3 - Which of the following characters can be used in a...Ch. 3 - Which of the following is true?
All data in a...Ch. 3 - Prob. 15MCCh. 3 - Which of the following commands creates a new...Ch. 3 - Which of the following is a valid table name? a....Ch. 3 - Prob. 18MCCh. 3 - Which object in the data dictionary enables you to...Ch. 3 - Prob. 20MCCh. 3 - Create a new table containing the category code...Ch. 3 - Create a new table containing these four columns:...Ch. 3 - Add two columns to the EMPLOYEES table. One...Ch. 3 - Modify the Job_class column of the EMPLOYEES table...Ch. 3 - Prob. 5HOACh. 3 - Rename the EMPLOYEES table as JL_EMPS.
Ch. 3 - Create a new table containing these four columns...Ch. 3 - Prob. 8HOACh. 3 - Truncate the BOOK_PRICING table, and then verify...Ch. 3 - Delete the BOOK_PRICING table permanently so that...
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