Online Access Free Oracle.1z0-071.v2025-09-16.q232 Practice Test (Page 37)

1z0-071 Exam Question 176

Which two statements are true about Entity Relationships?

A.A one-to-one relationship is always a self-referencing relationship

B.A Relationship can be mandatory for both entities

C.A many-to-many relationship can be implemented only by using foreign keys

D.A table name can be specified just once when selecting data from a table having a selfreferencing relationship

E.A one-to-many relationship in one direction is a one-to-one relationship in the other direction

1z0-071 Exam Question 177

Which three statements are true about indexes and their administration in an Oracle database?

A.An INVISIBLE index is not maintained when Data Manipulation Language (DML) is performed on its underlying table.

B.A DROP INDEX statement always prevents updates to the table during the drop operation

C.A descending index is a type of function-based index

D.A UNIQUE and non-unique index can be created on the same table column

E.An index can be created as part of a CREATE TABLE statement.

F.If a query filters on an indexed column then it will always be used during execution of the query

1z0-071 Exam Question 178

Which two true about a sql statement using SET operations such as UNION?

A.The data type of each column returned by the second query must be implicitly convertible to the data type of the corresponding column returned by the first query

B.The data type of each column retuned by the second query must exactly match the data type of the corresponding column returned by the first query

C.The number, but not names, of columns must be identical for all SELECT statements in the query

D.The data type group of each column returned by the second query must match the data type group of the corresponding column returned by the first query

E.The names and number of columns must be identical for all SELECT statements in the query.

1z0-071 Exam Question 179

Which two queries execute successfully?

A.SELECT prod_id FROM products
UNION ALL
SELECT prod_id, prod_name FROM new_products;

B.SELECT * FROM products
UNION
SELECT * FROM new_products;

C.SELECT prod_id, exp_date FROM products
UNION ALL
SELECT prod_id, NULL FROM new_products;

D.SELECT k FROM products
MINUS
SELECT prod_id FROM new_products;

E.SELECT prod_id, prod_name FROM products
INTERSECT
SELECT 100, prod_name FROM newproducts;

1z0-071 Exam Question 180

You execute this query:
SELECT TO CHAR (NEXT_DAY(LAST_DAY(SYSDATE),'MON' ),' dd"Monday for" fmMonth rrr') FROM DUAL; What is the result?

A.It executes successfully but does not return any result.

B.It returns the date for the first Monday of the next month.

C.It generates an error.

D.It returns the date for the last Monday of the current month.

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1z0-071 Exam Question 176

1z0-071 Exam Question 177

1z0-071 Exam Question 178

1z0-071 Exam Question 179

1z0-071 Exam Question 180

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