Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 4, Problem 9MC
Which of the following commands can you use to rename a constraint?
- a. RENAME
- b. ALTER CONSTRAINT
- c. MOVE
- d. NEW NAME
- e. None of the above commands can be used.
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Students have asked these similar questions
Which one of the following constraint is used along with the DROP COLUMN clause?
O a. DISABLE CONSTRAINTS
O b. ENABLE CONSTRAINTS
O. CASACDE CONSTRAINTS
O d. DROP CONSTRAINTS
1 40 DM
Which of the following commands can you use to rename a constraint? ( refer to the tables in the JustLee Books database). a. RENAME
b. ALTER CONSTRAINT
c. MOVE
d. NEW NAME
e. None of the above commands can be used.
( Please answer this question immediately I do not have time )
Use the following table to answer the questions below:
Table name: Books
Column Name
Role
Data Type
Length
Constraint
bookID
Stores the ID of a book
Number
5
Primary key
bookTitle
Stores the title of a book
Varchar2
50
-
bookISBN
Stores the ISBN of a book
Number
13
Cannot be null and duplicated
publicationDate
Store the publication date of a book
Date
-
Cannot be null
bookPrice
Stores the price of a book
Number
2,2
Cannot be null
a. Write in SQL a command that creates the table Books according to the above description
b. Write in SQL a statement that adds a new column named publisherID of type Char(10). This column should be defined as a foreign key that relates the table Books to the table Publisher
c. Write in SQL a command that deletes the books that are published before 20-Aug-2010
d. Write a SQL query that displays the number of books that are published in the year 2018
e. Write in SQL a…
Chapter 4 Solutions
Oracle 12c: SQL
Ch. 4 - What is the difference between a PRIMARY KEY...Ch. 4 - How can you verify the constraints that exist for...Ch. 4 - A table can have a maximum of how many PRIMARY KEY...Ch. 4 - Which type of constraint can be used to make...Ch. 4 - Which type of constraint should you use to ensure...Ch. 4 - How is adding a NOT NULL constraint to an existing...Ch. 4 - When must you define constraints at the table...Ch. 4 - Prob. 8RQCh. 4 - What is the difference between disabling a...Ch. 4 - Prob. 10RQ
Ch. 4 - Prob. 1MCCh. 4 - Which of the following is not a valid constraint...Ch. 4 - Which of the following SQL statements is invalid...Ch. 4 - What is the maximum number of PRIMARY KEY...Ch. 4 - Prob. 5MCCh. 4 - How many NOT NULL constraints can be created at...Ch. 4 - The FOREIGN KEY constraint should be added to...Ch. 4 - What is the maximum number of columns you can...Ch. 4 - Which of the following commands can you use to...Ch. 4 - Prob. 10MCCh. 4 - In the initial creation of a table, if a UNIQUE...Ch. 4 - Which type of constraint should you use on a...Ch. 4 - Which of the following commands can be used to...Ch. 4 - Which of the following keywords allows the user to...Ch. 4 - Which of the following data dictionary objects...Ch. 4 - Which of the following types of constraints cant...Ch. 4 - Suppose you created a PRIMARY KEY constraint at...Ch. 4 - You’re creating a new table consisting of three...Ch. 4 - Which of the following types of restrictions can...Ch. 4 - Which of the following is the valid syntax for...Ch. 4 - Prob. 1HOACh. 4 - Prob. 2HOACh. 4 - Prob. 3HOACh. 4 - Add a column named Base_salary with a datatype of...Ch. 4 - Create a table named BOOK_STORES to include the...Ch. 4 - Add a constraint to make sure the Rep_ID value...Ch. 4 - Change the constraint created in Assignment #6 so...Ch. 4 - Create a table named REP_CONTRACTS containing the...Ch. 4 - Produce a list of information about all existing...Ch. 4 - Issue the commands to disable and then enable the...
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