Database Programming Section 12 Quiz - Oracle iLearning

Database Programming Section 12 Quiz - Oracle iLearning

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Section 12 Quiz
(Answer all questions in this section)

1. When the WHERE clause is missing in a DELETE statement, what is the result? Mark for Review
(1) Points


An error message is displayed indicating incorrect syntax.


Nothing. The statement will not execute.


The table is removed from the database.


All rows are deleted from the table. (*)


2. One of your employees was recently married. Her employee ID is still 189, however, her last name is now Rockefeller. Which SQL statement will allow you to reflect this change? Mark for Review
(1) Points


INSERT INTO my_employees SET last_name = 'Rockefeller' WHERE employee_ID = 189;


INSERT my_employees SET last_name = 'Rockefeller' WHERE employee_ID = 189;


UPDATE INTO my_employees SET last_name = 'Rockefeller' WHERE employee_ID = 189;


UPDATE my_employees SET last_name = 'Rockefeller' WHERE employee_ID = 189; (*)



3. You need to update both the DEPARTMENT_ID and LOCATION_ID columns in the EMPLOYEES table using one UPDATE statement. Which clause should you include in the UPDATE statement to update multiple columns? Mark for Review
(1) Points


The WHERE clause


The ON clause


The SET clause (*)


The USING clause



4. Examine the structures of the PRODUCTS and SUPPLIERS tables:
SUPPLIERS:
SUPPLIER_ID NUMBER NOT NULL, Primary Key
SUPPLIER_NAME VARCHAR2 (25)
ADDRESS VARCHAR2 (30)
CITY VARCHAR2 (25)
REGION VARCHAR2 (10)
POSTAL_CODE VARCHAR2 (11)

PRODUCTS:
PRODUCT_ID NUMBER NOT NULL, Primary Key
PRODUCT_NAME VARCHAR2 (25)
SUPPLIER_ID NUMBER Foreign key to SUPPLIER_ID of the SUPPLIERS table
CATEGORY_ID NUMBER
QTY_PER_UNIT NUMBER
UNIT_PRICE NUMBER (7,2)
QTY_IN_STOCK NUMBER
QTY_ON_ORDER NUMBER
REORDER_LEVEL NUMBER

You want to delete any products supplied by the five suppliers located in Atlanta. Which script should you use?

 Mark for Review
(1) Points


DELETE FROM products
WHERE UPPER(city) = 'ATLANTA';


DELETE FROM suppliers
WHERE supplier_id IN
(SELECT supplier_id FROM suppliers WHERE UPPER(city) = 'ALANTA');


DELETE FROM products
WHERE supplier_id IN
(SELECT supplier_id FROM suppliers WHERE UPPER(city) = 'ATLANTA');
(*)



DELETE FROM products
WHERE supplier_id =
(SELECT supplier_id FROM suppliers WHERE UPPER(city) = 'ATLANTA');


5. If you are performing an UPDATE statement with a subquery, it MUST be a correlated subquery? (True or False) Mark for Review
(1) Points


True


False (*)
(Answer all questions in this section)

6. Which statement below will not insert a row of data into a table? Mark for Review
(1) Points


INSERT INTO student_table (id, lname, fname, lunch_num)
VALUES (143354, 'Roberts', 'Cameron', 6543);


INSERT INTO student_table (id, lname, fname, lunch_num)
VALUES (143352, 'Roberts', 'Cameron', DEFAULT);


INSERT INTO student_table
VALUES (143354, 'Roberts', 'Cameron', 6543);


INSERT INTO (id, lname, fname, lunch_num)
VALUES (143354, 'Roberts', 'Cameron', 6543);
(*)


7. A column in a table can be given a default value. This option prevents NULL values from automatically being assigned to the column if a row is inserted without a specified value for the column. True or False ? Mark for Review
(1) Points


True (*)


False



8. In a conditional multi-table insert, you can specify either __________ or __________. Mark for Review
(1) Points


All; Second


Null; Default


All; First (*)


First; Second


9. The default value must match the __________ of the column. Mark for Review
(1) Points


Datatype (*)


Size


Column name


Table



10. A multi-table insert statement must have a subquery at the end of the statement. (True or False?) Mark for Review
(1) Points


True (*)


False


11. You need to copy rows from the EMPLOYEE table to the EMPLOYEE_HIST table. What could you use in the INSERT statement to accomplish this task? Mark for Review
(1) Points


A function


An ON clause


A SET clause


A subquery (*)


12. To return a table summary on the customers table, which of the following is correct? Mark for Review
(1) Points


DESCRIBE customers, or DESC customers (*)


SHOW customers, or SEE customers


DEFINE customers, or DEF customers


DISTINCT customers, or DIST customers


13. You need to add a row to an existing table. Which DML statement should you use? Mark for Review
(1) Points


UPDATE


INSERT (*)


CREATE


DELETE



14. Which of the following statements will add a new customer to the customers table in the Global Fast Foods database? Mark for Review
(1) Points


INSERT INTO customers
(id 145, first_name 'Katie', last_name 'Hernandez', address '92 Chico Way', city 'Los Angeles', state 'CA', zip 98008, phone_number 8586667641);


INSERT INTO customers (id, first_name, last_name, address, city, state, zip, phone_number)
VALUES (145, 'Katie', 'Hernandez', '92 Chico Way', 'Los Angeles', 'CA', 98008, 8586667641);
(*)


INSERT INTO customers (id, first_name, last_name, address, city, state, zip, phone_number)
VALUES ("145", 'Katie', 'Hernandez', '92 Chico Way', 'Los Angeles', 'CA', "98008", "8586667641");


INSERT IN customers (id, first_name, last_name, address, city, state, zip, phone_number);



15. Which statement about the VALUES clause of an INSERT statement is true? Mark for Review
(1) Points


If no column list is specified, the values must be listed in the same order that the columns are listed in the table. (*)


To specify a null value in the VALUES clause, use an empty string (" ").


Character, date, and numeric data must be enclosed within single quotes in the VALUES clause.


The VALUES clause in an INSERT statement is mandatory in a subquery.


SELAMAT BERJUANG...............................!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!




Oracle Ilearning for Database Design


Pelajar yang menyelesaikan Desain & Pemrograman Database Oracle Academy dengan kursus SQL dapat sebagai gantinya (atau juga) memilih untuk mempersiapkan dan mengikuti ujian sertifikasi SQL Server SQL Expert. Namun, ujian Oracle Database SQL Expert berisi topik tambahan yang akan membutuhkan lebih banyak belajar mandiri dan berlatih sendiri untuk mempersiapkan.



Membutuhkan penyelesaian yang berhasil sebelum Ujian Sertifikasi Oracle Database SQL Expert, Pengantar Oracle Ujian Sertifikasi SQL, atau Oracle Database : Ujian Sertifikasi SQL Fundamentals.



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