Free Access Oracle.1z0-071.v2023-10-02.q276 Practice Test (Page 32)

Question 151

Examine the description of the CUSTOMERS table:
Which three statements will do an implicit conversion?

A.SELECT * FROM customers WHERE customer_id='0001';

B.SELECT * FROM customers WHERE TO_CHAR(customer_id)='0001';

C.SELECT * FROM customers WHERE TO_DATE(insert_date)=DATE'2019-01-01';

D.SELECT * FROM customers WHERE customer_id=0001;

E.SELECT * FROM customers WHERE insert_date=DATE'2019-01-01';

F.SELECT * FROM customers WHERE insert_date'01-JAN-19';

Question 152

Examine the structure of the two tables.

Which two queries execute successfully? (Choose two.)

A.Option A

B.Option B

C.Option E

D.Option C

E.Option D

Question 153

.No user-defined locks are used in your database.
Which three are true about Transaction Control Language (TCL)?

A.ROLLBACK to SAVEPOTNT undoes the transaction's changes made since the named savepoint and then ends the transaction.

B.COMMIT erases all the transaction's savepoints and releases its locks.

C.ROLLBACK without the TO SAVEPOINT clause undoes all the transaction's changes but does not erase its savepoints.

D.COMMIT ends the transaction and makes all its changes permanent.

E.ROLLBACK without the TO SAVEPOINT clause undoes all the transaction's changes but does not release its locks.

F.ROLLBACK without the TO SAVEPOINT clause undoes alt the transaction's changes, releases its locks, and erases all its savepoints.

Question 154

View the Exhibit and examine the structure of the ORDERS table. The ORDER_ID column is the PRIMARY KEY in the ORDERS table.

Evaluate the following CREATE TABLE command:
CREATE TABLE new_orders(ord_id, ord_date DEFAULT SYSDATE, cus_id)
AS
SELECT order_id.order_date,customer_id
FROM orders;
Which statement is true regarding the above command?

A.The NEW_ODRDERS table would not get created because the column names in the CREATE TABLE command and the SELECT clause do not match.

B.The NEW_ODRDERS table would not get created because the DEFAULT value cannot be specified in the column definition.

C.The NEW_ODRDERS table would get created and all the constraints defined on the specified columns in the ORDERS table would be passed to the new table.

D.The NEW_ODRDERS table would get created and only the NOT NULL constraint defined on the specified columns would be passed to the new table.

Question 155

View the Exhibit and examine the data in the employees table.

You want to generate a report showing the total compensation paid to each employee to date.
You issue the following query:

What is the outcome?

A.It generates an error because the concatenation operator can be used to combine only two items.

B.It executes successfully and gives the correct output.

C.It generates an error because the alias is not valid.

D.It generates an error because the usage of the round function in the expression is not valid

E.It executes successfully but does not give the correct output.

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Question 151

Question 152

Question 153

Question 154

Question 155

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