Free Access Oracle.1z1-071.v2025-05-13.q352 Practice Test (Page 46)

Question 221

Which two statements are true about a self join?

A.It can be a left outer join.

B.It must be a full outer join.

C.It can be an inner join.

D.It must be an equijoin.

E.The join key column must have an index.

Question 222

You have the privileges to create any type of synonym.
Which stalement will create a synonym called EMP for the HCM.EMPLOYEE_RECORDS table that is accesible to all users?

A.CREATE GLOBAL SYNONYM emp FOR hcm.employee_records;

B.CREATE SYNONYM emp FOR hcm.employee_records;

C.CREATE SYNONYM PUBLIC.emp FOR hcm.employee_records;

D.CREATE SYNONYM SYS.emp FOR hcm.employee_records;

E.CREATE PUBLIC SYNONYM emp FOR hcm. employee_records;

Question 223

Examine the structure of the DEPARTMENTS table.

You execute the following command:

Which two statements are true?

A.A new column, COUNTRY, can be added to the DEPARTMENTStable after executing the command.

B.Views created in the DEPARTMENTStable that include the COUNTRYcolumn are automatically modified and remain valid.

C.Indexes created on the COUNTRYcolumn exist until the DROP UNUSED COLUMNScommand is executed.

D.Unique key constraints defined on the COUNTRYcolumn are removed.

E.Synonyms existing of the DEPARTMENTStable would have to be re-created.

Question 224

Which two statements are true about truncate and delete?

A.the result of a delete can be undone by issuing a rollback

B.delete can use a where clause to determine which row(s) should be removed.

C.TRUNCATE can use a where clause to determine which row(s) should be removed.

D.truncate leavers any indexes on the table in an UNUSABLE STATE.

E.the result of a truncate can be undone by issuing a ROLLBACK.

Question 225

View the exhibit and examine the description of the DEPARTMENTS and EMPLOYEES tables.
The retrieve data for all the employees for their EMPLOYEE_ID, FIRST_NAME, and DEPARTMENT NAME, the following SQL statement was written:
SELECT employee_id, first_name, department_name
FROM employees
NATURAL JOIN departments;
The desired output is not obtained after executing the above SQL statement. What could be the reason for this?

A.The table prefix is missing for the column names in the SELECT clause.

B.The NATURAL JOIN clause is missing the USING clause.

C.The DEPARTMENTS table is not used before the EMPLOYEES table in the FROM clause.

D.The EMPLOYEES and DEPARTMENTS tables have more than one column with the same column name and data type.

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Question 221

Question 222

Question 223

Question 224

Question 225

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