READ Free Dumps For Oracle- 1z0-007

Question ID 1676	You need to modify the STUDENTS table to add a primary key on the STUDENT_ID column. The table is currently empty. Which statement accomplishes this task?
Option A	A.    ALTER TABLE students ADD CONSTRAINT stud_id_pk PRIMARY KEY student_id;
Option B	B.    ALTER TABLE students MODIFY CONSTRAINT stud_id_pk PRIMARY KEY (student_id);
Option C	C.    ALTER TABLE students ADD CONSTRAINT PRIMARY KEY (student_id);
Option D	D.    ALTER TABLE students ADD PRIMARY KEY student_
Option E	E.    ALTER TABLE students ADD CONSTRAINT stud_id_pk PRIMARY KEY (student_id);
Correct Answer	E

Explanation

Question ID 1677	Click the Exhibit button and examine the data from the EMP table. The COMMISSION column shows the monthly commission earned by the employee. Which two tasks would require subqueries or joins in order to be performed in a single step? (Choose two.)
Option A	A.    listing the employees whose annual commission is more than 6000
Option B	B.    listing the departments whose average commission is more than 600
Option C	C.    finding the number of employees who earn a commission that is higher than the average commission of the company
Option D	D.    listing the employees who do not earn commission and who are working for department 20 in descending order of the employee ID
Option E	E.    finding the total commission earned by the employees in department 10
Option F	F.    listing the employees who earn the same amount of commission as employee 3
Correct Answer	C,F

Explanation

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