Free Access Oracle.1z1-071.v2022-04-30.q200 Practice Test (Page 18)

Question 81

Examine the commands used to create DEPARTMENT_DETAILSand COURSE_DETAILS tables:

You want to generate a list of all department IDs along with any course IDs that may have been assigned to them.
Which SQL statement must you use?
SELECT d.department_id, c.course_id FROM department_details d RIGHT OUTER JOIN

A.course_details c ON (c.department_id=d. department_id);

B.course_details c ON (d.department_id=c. department_id);
SELECT d.department_id, c.course_id FROM course_details c LEFT OUTER JOIN

C.course_details c ON (d.department_id=c. department_id);
SELECT d.department_id, c.course_id FROM department_details d LEFT OUTER JOIN

D.department_details d ON (c.department_id=d. department_id);
SELECT d.department_id, c.course_id FROM department_details d RIGHT OUTER JOIN

Question 82

View the Exhibit and examine the data in the EMPLOYEES table.
Exhibit

You want to generate a report showing the total compensation paid to each employee to date.
You issue the following query:

What is the outcome?

A.It executes successfully but does not give the correct output.

B.It generates an error because the concatenation operator can be used to combine only two items.

C.It generates an error because the usage of the ROUNDfunction in the expression is not valid.

D.It generates an error because the alias is not valid.

E.IT executes successfully and gives the correct output.

Question 83

The PRODUCTStable has the following structure.

Evaluate the following two SQL statements:
SQL>SELECT prod_id, NVL2 (prod_expiry_date, prod_expiry_date + 15, ' ') FROM products; SQL>SELECT prod_id, NVL (prod_expiry_date, prod_expiry_date + 15) FROM products; Which statement is true regarding the outcome?

A.Both the statements execute and give different results

B.Only the second SQL statement executes successfully

C.Both the statements execute and give the same result

D.Only the first SQL statement executes successfully

Question 84

View the Exhibit and examine the structure of the PROMOTIONS table.
Evaluate the following SQL statement:
Which statement is true regarding the outcome of the above query?

A.It produces an error because subqueries cannot be used with the CASE expression.

B.It shows COST_REMARK for all the promos in the table.

C.It shows COST_REMARK for all the promos in the promo category 'TV'.

D.It produces an error because the subquery gives an error.

Question 85

View the Exhibit and examine the data in the PRODUCTS table.

Which statement would add a column called PRICE, which cannot contain NULL?

A.ALTER TABLE productsADD price NUMBER(8,2) DEFAULT NOT NULL;

B.ALTER TABLE productsADD price NUMBER(8,2) NOT NULL;

C.ALTER TABLE productsADD price NUMBER(8,2) DEFAULT 0 NOT NULL;

D.ALTER TABLE productsADD price NUMBER(8,2) DEFAULT CONSTRAINT p_nn NOT NULL.

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Question 81

Question 82

Question 83

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Question 85

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