Answered: When should the FORCE keyword be used…

Engineering

Computer Science

When should the FORCE keyword be used in the CREATE VIEW command?

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter13: Views

Section: Chapter Questions

Problem 3RQ

See similar textbooks

Related questions

Q: What command should be used to copy and paste data from one table to another?

A: The INSERT INTO command transfers data from one table and inserts it into another. The Input INTO…

Q: Task 7: Create a view named INVOICE_TOTAL. It consists of the invoice number and invoice total for…

A: Actually, database is a used to stores the data\information.

Q: Which command should you use to add data from one table to another?

A: explain command use to add data from one table into another table.

Q: Which DDL command is used to display all the contents of the table? UPDATE DISPLAY INSERT SELECT

A: Question 15:

Q: What happens to the data displayed by a view when the view is deleted?

A: Nothing will happen to the data displayed by a view, if the view is deleted.

Q: What command show the status of the previous command?

A: In CMD prompt to get the exit status of the previous command we use the following command: echo…

Q: e table to another?

A: given - Which command should you use to add data from one table to another?

Q: What restrictions can you apply when you are creating views?

A: Introduction: A view's referenced tables must all be in the same database. - Any user-defined…

Q: Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new…

A: Actually, Triggers are SQL procedure that automatically perform the action when specific command…

Q: Which of the following commands can you use to modify an index?a. ALTER SESSIONb. ALTER TABLEc.…

Q: 2a. Create a view "View_Dept6090" which will display columns EmpNo, EName and Salary, by selecting…

A: part 2a. A view is created using the given syntax. CREATE VIEW view_name AS SELECT…

Q: A table can be deleted from the database by using the _____ TABLE command. Select one: a. MODIFY b.…

A: Drop function is used to delete the table from a database. Delete is used to delete a row from a…

Q: Create a trigger named trg_cust_balance that automatically updates the CUSTOMER table’s CUS_BALANCE…

A: Syntax for creating a trigger: CREATE TRIGGER name{AFTER|BEFORE|INSTEAD OF} {DELETE|INSERT|UPDATE}…

Q: When would the use of the LIKE keyword with the CREATE TABLE command be helpful?

A: Use of LIKE keyword The LIKE key word with the CREATE table is used to make the clone or copy the…

Q: On Microsoft Access: Using an update query, update the field values in the StateMinInc field in the…

A: I dont have table so cannot show the work, The steps are shown below to run the update query in Ms…

Q: Write the SQL command to revoke user Stetson's privilege.

A: The revoke command can be used to revoke all or selective privileges of a user. see the command in…

Q: Create a trigger named trg_pic_hours that automatically updates the PILOT table when a new CREW row…

A: Triggers are stored programs which are automatically fired when some event occur. Syntax for…

Q: Create a row level trigger which insert a tuple into the customner_audit (customerNO, customerName,…

A: Customer Order tables: Customer (customerNO, customerName, address, city, category, custBalance)…

Q: Which command should you use to copy data from one table and have it added to an existing table?

A: INSERT command: INSERT INTO command is used to copy data from one table and to add it to the…

Q: of the following command is used? 1. Join 2. Projection 3. Selection 4. union

A: Union command to use to perform union of two tables when the columns of two table have same number.…

Q: Create a view named 'EmployeeReport' that contains the employee name, employee surname and the total…

A: SOLUTION : To create the view of surname, name, and total days work let us take the employee table…

Q: write and execute the command to retrieve the reservation id, trip id, trip date, and customer last…

A: View command for retrieving reservation details View is a virtual table that does not exist…

Q: Using the INVOICE_TOTAL VIEW write and execute the command to retrieve the invoice number and…

A: Using the INVOICE_TOTAL VIEW write and execute the command to retrieve the invoice number and…

Q: Write a script that creates and calls a stored procedure named spInsertDepartment. First, code a…

A: Answer : Stored Procedure : /*creating stored procedure*/create procedure…

Q: How do you ensure that no user can change the data displayed by a view?

A: Add the WITH READ ONLY clause when making the table to make sure that no user can modify the data…

Q: When should you use the %ROWTYPE attribute in creating a record variable? Answers: a. when using…

A: Required: when use %ROWTYPE

Q: plz help in sql You can modify data in a view if the view contains a group function Select one:…

A: If the view contains joins between multiple tables, you can only insert and update one table in the…

Q: CREATE OR REPLACE VIEW view_name AS SELECT column1, column2, ... FROM table_name WHERE condition; in…

A: Given: CREATE OR REPLACE VIEW view_name ASSELECT column1, column2, ...FROM table_nameWHERE…

Q: Create a read-only view, name it as ViewD, that will contain RType and the number of rooms per RType…

A: We are going to create view in the table which will have attribute Rtype and Rnumber.

Q: SQL ANSWERED -- Create a view called EMP_VU based on the employee number, employee name, and…

A: VIEW In SQL a view is a virtual table based on the result set of an SQL statement. a view contains…

Q: which of the following operator is not specified in triggers? 1. insert 2. Alter 3. update 4.…

A: What is Trriger: It is a database object that fires when a database event happens. When a change is…

Q: When should the VALUES clause be omitted from the INSERT INTO command?

A: INSERT INTO - This command is used to insert the values in a table (SQL)

Q: We can use view to display information to users.

A: Filled the given statement

Q: When a view is removed, what happens to the data it displayed?

A: Required: When a view is removed, what happens to the data it displayed?

Q: Create view Update view in oracle

A: A view in Oracle is a virtual table that does not occur physically. It is contained in an Oracle…

Q: Create a trigger named trg_line_total to write the LINE_TOTAL value in the LINE table every time you…

A: Triggers are stored programs which are automatically fired when some event occur. Syntax : CREATE…

Q: 2. Complete the stored procedure below. The procedure will be used for deleting a row from the PART…

A: Find the required procedure given as below :

Q: Which symbol in the SELECT clause indicates that all attributes of the selected row are to be…

A: Answer is *

Q: Write and execute the command to retrieve the customer ID, first name, and last name of each…

A: In SQL, A view is a virtual table based on the result-set of an SQL statement. A view contains rows…

Q: Which clause is used in a LINQ statement to specify the records that will be selected?a. Limitb.…

A: Clause used in a LINQ statement: In Visual Basic 2010, Language Integrated Query (LINQ) is used for…

Q: Create a trigger that will prefix the values of item category with ‘dev-‘ when a new row ins…

A: Actually, SQL is a structured query language which is used to insert, delete ,modify and delete the…

Q: In a SELECT statement, which clause is used to limit the records that will be selected? a. LIMIT b.…

A: In SELECT statement, the “WHERE” clause is used to restrict the records retrieved from a table.…

Q: Create a trigger named trg_char_hours that automatically updates the AIRCRAFT table when a new…

A: TRIGGER: Following is the trigger definition which performs the above required task: CREATE OR…

Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

When should the FORCE keyword be used in the CREATE VIEW command?

Expert Solution

Step 1

VIEW:

The “VIEW” in Structured Query Language (SQL) is a virtual table that does not exist physically.
It is formed by a SQL statement that links one or more tables.
The view is considered as a derived table because the data comes from one or more base tables.
It is a logical representation of table; all the operations asked by the user on a view are really done on the underlying base table.
View provides security to the tables in database.

Step by step

Solved in 2 steps

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

Create a view named CONDO_OWNERS. It consists of the location number, unit number, square footage, bedrooms, baths, condo fee, and owners last name for every condo inwhich the number of bedrooms is three. a. Write and execute the CREATE VIEW command to create the CONDO_OWNERSview. b. Write and execute the command to retrieve the location number, unit number,condo fee, square footage, and owners last name for every condo in theCONDO_OWNERS view with a condo fee of less than 500. c. Write and execute the query that the DBMS actually executes. d. Does updating the database through this view create any problems? If so, what arethey? If not, why not?
Create a view named CONDO_FEES. It consists of two columns: the first is the square footage, and the second is the average fee for all condos in the CONDO_UNIT table thathave that square footage. Use AVERAGE_FEE as the column name for the average fee.Group and order the rows by square footage. a. Write and execute the CREATE VIEW command to create the CONDO_FEES view. b. Write and execute the command to retrieve the square footage and average fee foreach square footage for which the average fee is greater than 500. c. Write and execute the query that the DBMS actually executes. d. Does updating the database through this view create any problems? If so, what arethey? If not, why not?
Task 2: Write and execute the command to retrieve the office number, property ID, and monthly rent for every property in the SMALL_PROPERTY view with a monthly rent of $1150 or more. This is my response. However it isn't working when I check the file. Also the table isn't popping up like the other completed queries, can you let me know where I went wrong and provide correct reponse. Thanks, CREATE VIEW TASK2 AS SELECT OFFICE_NUM, PROPERTY_ID, MONTHLY_RENTFROM SMALL_PROPERTYWHERE MONTHLY_RENT < 1150;
Task 7: Create a view named MONTHLY_RENTS. It consists of three columns: the first is the number of bedrooms, the second is the average square feet, and the third is the average monthly rent for all properties in the PROPERTY table that have that number of bedrooms. Use BEDROOMS, AVG_SQUARE_FEET, and AVG_MONTHLY_RENT as the column names. Group and order the rows by number of bedrooms. Task 8: Write and execute the command to retrieve the average square footage and average monthly rent for each property for which the average monthly rent is greater than $1,400.
Task 7: Create a view named MONTHLY_RENTS. It consists of three columns: the first is the number of bedrooms, the second is the average square feet, and the third is the average monthly rent for all properties in the PROPERTY table that have that number of bedrooms. Use BEDROOMS, AVG_SQUARE_FEET, and AVG_MONTHLY_RENT as the column names. Group and order the rows by number of bedrooms. Task 8: Write and execute the command to retrieve the average square footage and average monthly rent for each property for which the average monthly rent is greater than $1,400. Task 9: Without using the MONTHLY_RENTS VIEW, write and execute the command to retrieve the average square footage and average monthly rent for each property for which the average monthly rent is less than $1,400.
Write down 5 triggers. Triggers should be meaningful.
Create a view named RESERVATION_CUSTOMER. It consists of the reservation ID, tripID, trip date, customer number, customer last name, customer first name, and phonenumber. Write and execute the command to retrieve the reservation ID, trip ID, trip date, andcustomer last name for every reservation in the RESERVATION_CUSTOMER viewwith a trip date of September 11 , 2016. WHAT AM I MISSING OR HAVE INCORRECT ? SELECT Reservation_ID, Trip_ID, Trip_Date, Last_Name FROM RESERVATION_CUSTOMER WHERE TRIP_DATE = '09-SEP-2016';
Task 5: Write and execute the command to retrieve all information for a property for every property in the PROPERTY_OWNERS view with a monthly rent of less than $1675. Task 6: Repeat Task 5 without using the PROPERTY_OWNERS VIEW.
What restrictions can you apply when you are creating views?
Task 9: Repeat Task 8 without using the INVOICE_TOTAL VIEW. (Task 8: Using the INVOICE_TOTAL VIEW write and execute the command to retrieve the invoice number and invoice total for only those orders totaling more than $250.)
Which of the following statements can be used to display data using the view called "VIEW_PAYE_Kenya"? a.SELECT * FROM VIEW_PAYE_Kenya; b.CALL VIEW_PAYE_Kenya();
Views: Create a view “customer_guangzhou”, it indicates the customers from the city “guangzhou”; Create a view “ordersum_goods”, it indicates the total quantity of the orders of each product (goods).