Oracle Exam 1Z0-071 Topic 12 Question 114 Discussion

Actual exam question for Oracle's 1Z0-071 exam

Question #: 114
Topic #: 12

[All 1Z0-071 Questions]

Examine the description of the CUSTOMERS table:

Which three statements will do an implicit conversion?

ASELECT * FROM customers WHERE insert_date=DATE'2019-01-01';

BSELECT * FROM customers WHERE customer_id='0001';

CSELECT * FROM customers WHERE TO_DATE(insert_date)=DATE'2019-01-01';

DSELECT * FROM customers WHERE insert_date'01-JAN-19';

ESELECT * FROM customers WHERE customer_id=0001;

FSELECT * FROM customers WHERE TO_CHAR(customer_id)='0001';

Show Suggested Answer

Suggested Answer: B

B . True. This statement will execute successfully because it has a single column in the SELECT statements combined with UNION, and the ORDER BY clause is referencing a valid column in the result set.

A is incorrect because it uses an ORDER BY clause with two columns, which is not allowed when the SELECT statements have only one column each. C is incorrect for the same reason as A; it references columns that do not exist in the result set. D is incorrect because it attempts to ORDER BY a second column, which does not exist in the result of the union.

by Adelle at Mar 22, 2025, 06:07 PM

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