Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 4, Problem 6MC
How many NOT NULL constraints can be created at the table level by using the CREATE TABLE command?
- a. 0
- b. 1
- c. 12
- d. 30
- e. 255
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How many NOT NULL constraints can be created at the table level by using the CREATE TABLE command? ( refer to the tables in the JustLee Books database).
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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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- q29arrow_forwardYou’re creating a new table consisting of three columns: Col1, Col2, and Col3. Col1 should be the primary key and can’t have any NULL values, and each entry should be unique. Col3 must not contain any NULL values either. How many total constraints do you have to create? ( refer to the tables in the JustLee Books database). a. 1 b. 2 c. 3 d. 4arrow_forwardherpever applicable 2. Title field in Instructor table should allow only Mr., Ms., Mrs., Dr., Prof. as values apply check constraintsarrow_forward
- Create a table in your own database using the following statement. CREATE TABLE DateRange (DateID INT IDENTITY, DateValue DATE, DayOfWeek SMALLINT, Week SMALLINT, Month SMALLINT, Quarter SMALLINT, Year SMALLINT ); Write a stored procedure that accepts two parameters: A starting date The number of the consecutive dates beginning with the starting date The stored procedure then inserts data into all columns of the DateRange table according to the two provided parameters.arrow_forwardPROBLEM: Create a table named BOOK_STORES to include the columns listed in the following chart. Column Name Store_ID Name Contact Rep_ID Datatype NUMBER (8) VARCHAR2(30) VARCHAR2(30) VARCHAR2(5) Constraint Comments PRIMARY KEY column Should be UNIQUE and NOT NULL : INSTRUCTIONS: Submit the complete code on doc file, run and also submit the snapshot of the result. You can paste the screen shots(2) on a MS. Word doc.arrow_forwardWhen must you define constraints at the table level rather than the column level? ( refer to the tables in the JustLee Books database).arrow_forward
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