Free Access Oracle.1z0-071.v2022-09-21.q298 Practice Test (Page 55)

Question 266

Evaluate the following CREATE TABLE command:

Which statement is true regarding the above SQL statement?

A.It would give an error because the USING INDEX clause cannot be used on a composite primary.

B.It would execute successfully and only ORD_ITM_IDX index would be created.

C.It would give an error because the USING INDEX clause is not permitted in the CREATE TABLE command.

D.It would execute successfully and two indexes ORD_ITM_IDX and ORD_ITM_ID_PK would be created.

Question 267

Which two statements are true about Data Manipulation Language (DML) statements? (Choose two.)

A.An INSERT INTO...VALUES.. statement can add multiple rows per execution to a table.

B.An UPDATE... SET... statement can modify multiple rows based on multiple conditions on a table.

C.A DELETE FROM..... statement can remove rows based on only a single condition on a table.

D.An INSERT INTO... VALUES..... statement can add a single row based on multiple conditions on a table.

E.A DELETE FROM..... statement can remove multiple rows based on multiple conditions on a table.

F.An UPDATE....SET.... statement can modify multiple rows based on only a single condition on a table.

Question 268

Which three statements are true regarding the data types?

A.The BLOBdata type column is used to store binary data in an operating system file.

B.The value for a CHARdata type column is blank-padded to the maximum defined column width.

C.The minimum column width that can be specified for a VARCHAR2data type column is one.

D.Only one LONGcolumn can be used per table.

E.A TIMESTAMPdata type column stores only time values with fractional seconds.

Question 269

Examine this query which executes successfully;
Select job,deptno from emp
Union all
Select job,deptno from jobs_history;
What will be the result?

A.It will return rows from both select statements after eliminating duplicate rows.

B.It will return rows both select statements including duplicate rows.

C.It will return rows that are not common to both select statements.

D.It will return rows common to both select statements.

Question 270

Examine the structure of the CUSTOMERS table: (Choose two.)
CUSTNO is the PRIMARY KEY.
You must determine if any customers' details have been entered more than once using a different CUSTNO, by listing all duplicate names.
Which two methods can you use to get the required result?

A.Right outer-join with self-join

B.Self-join

C.Full outer-join with self-join

D.Subquery

E.Left outer-join with self-join

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Question 266

Question 267

Question 268

Question 269

Question 270

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