Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 4, Problem 10RQ
Explanation of Solution
Determining NULL values
- The NULL value is used to represent a missing value.
- A NULL value in a table is a value in a field that appears to be blank...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Need help with this in python!
Need help with this in python!
Help! How do I turn the flowchart that searches for a name in an array of names into structured and spaced pseudocode?
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- The mail merge process has ____ steps. Question 19Select one: a. five b. six c. seven d. eightarrow_forwardIf you created a main document based on an existing document entitled "Confirmation Letter," what default filename would Word give the main document? Question 14Select one: a. Confirmation Letter-1 b. Confirmation Letter-merge c. Document1 d. MergedDocument1arrow_forwardClick the ____ option button in the Mail Merge task pane to use an Outlook contact list as a data source for a merge. Question 11Select one: a. Use Outlook contacts list b. Select from Outlook contacts c. Select Contacts d. Mail Merge Recipientsarrow_forward
- A(n) ____ cannot be selected as the document type in the Mail Merge task pane. Question 9Select one: a. Letter b. Directory c. Fax d. E-mail messagearrow_forwardConsider a Superstore Database which consists of 3 tables, Orders, Returns, and Managers. The CSV files have been provided along with this DOC file in the Midterm 2 Link in the Moodle. Answer the questions as below: Use the created table as in the provided SQL query file, solve the problems as mentioned below. You will have to import the respective CSV files of the above created tables as without them, it is impossible to solve the questions below. If you are not able to upload the files successfully, do not leave the query questions. Just write the query to the best of your knowledge. Do not copy. To be graded for the screenshot answer, you must upload the CSV properly and paste the resulting screenshot of the queries as asked. Write Query to Find out which Product Sub-Category has a sum of Shipping Cost to sum of Sales ratio > 0.03.arrow_forwardI need to render an image of a car continuously for a smooth visual experience in C# WinForms. It gets the location array (that has all the x,y of the tiles it should visit) from another function - assume it is already written.arrow_forward
- write c program with features: Register a Bunny: Store the bunny's name, poem, and initialize the egg count to 0. Modify an Entry: Change the bunny's poem or update the egg count. Delete a Bunny: Remove a registered bunny from the list. List All Bunnies: Display all registered bunnies and their details. Save & Load Data: Store bunny data in a file to persist between runs. Use a struct to represent a bunny contestant. Store data in a binary file (bunnies.dat) for persistence. Use file I/O functions (fopen, fwrite, fread, etc.) to manage data. Implement a menu-driven interface for user interaction.arrow_forwardHelp, how do I write the pseudocode for the findMean function and flowchart for this?arrow_forwardNeed help drawing a flowchart for the findMax function herearrow_forward
- Need help writing the pseudocode for the findMin function with attachedarrow_forwardCreate a static function in C# where poachers appear and attempt to hunt animals. It gets the location of the closest animal to itself. Take account of that the animal also move too, so it should update the closest location (x, y) everytime it moves to a new location. Use winforms to show the movements of poachers.arrow_forwardCreate a static function in C# where poachers appear and attempt to hunt animals. It gets the location of the closest animal to itself. Take account of that the animal also moves too, so it should update the closest location (x, y) everytime it moves to a new location. Use winforms to show to movementsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr- Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781305627482Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning