1Z0-051 Questions and Answers

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Oracle Database 11g : SQL Fundamentals I: 1Z0-051

Rating: 4.5

Vendor: Oracle

Certifications: Oracle Database Application Development

Exam Name: Oracle Database 11g : SQL Fundamentals I

Exam Code: 1Z0-051

Total Questions: 292 Q&As

Last Updated: Dec 14, 2021

Exam retired ,new exam code replace: 1Z0-071

PDF Only: $45.99 VCE Only: $49.99 VCE + PDF: $59.99

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Same Questions from the Latest Real Exam

1Z0-051 Online Practice Questions and Answers

Questions 1

Examine the structure of the EMPLOYEES and NEW_EMPLOYEES tables:

Which DELETE statement is valid?

A. DELETE FROM employees WHERE employee_id = (SELECT employee_id FROM employees);

B. DELETE * FROM employees WHERE employee_id=(SELECT employee_id FROM new_employees);

C. DELETE FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = `Carrey');

D. DELETE * FROM employees WHERE employee_id IN (SELECT employee_id FROM new_employees WHERE name = `Carrey');

Show Answer
Questions 2

Which statement adds a constraint that ensures the CUSTOMER_NAME column of the CUSTOMERS table holds a value?

A. ALTER TABLE customers ADD CONSTRAINT cust_name_nn CHECK customer_name IS NOT NULL;

B. ALTER TABLE customers MODIFY CONSTRAINT cust_name_nn CHECK customer_name IS NOT NULL;

C. ALTER TABLE customers MODIFY customer_name CONSTRAINT cust_name_nn NOT NULL;

D. ALTER TABLE customers MODIFY customer_name CONSTRAINT cust_name_nn IS NOT NULL;

E. ALTER TABLE customers MODIFY name CONSTRAINT cust_name_nn NOT NULL;

F. ALTER TABLE customers ADD CONSTRAINT cust_name_nn CHECK customer_name NOT NULL;

Show Answer
Questions 3

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

You want to display all the employee names and their corresponding manager names.

Evaluate the following query:

SQL> SELECT e.employee_name "EMP NAME", m.employee_name "MGR NAME" FROM employees e ______________ employees m

ON e.manager_id = m.employee_id;

Which JOIN option can be used in the blank in the above query to get the required output? Exhibit:

A. only inner JOIN

B. only FULL OUTER JOIN

C. only LEFT OUTER JOIN

D. only RIGHT OUTER JOIN

Show Answer More Questions

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