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killtest题库网提供最新的11g OCA认证题库下载!

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  11g OCA认证题库由我们专业IT认证讲师及产品专家精心打造,包括了当前最新的全真试题,全部附有正确答案.题库的覆盖率在96%,保证考生能一次通过考试!

通过11g OCA认证需要通过1z0-0511z0-052考试。题库的覆盖率达96%以上,答案由多位专业资深讲师原版破解得出,正确率100%

网站承诺只要您使用本站的题库参加OCA(Oracle Database: SQL Fundamentals I )考试,我们保证您一次轻松通过考试。

1. Which two statements are true regarding single row functions? (Choose two.)

A. They a ccept only a single argument.

B. They c an be nested only to two levels.

C. Arguments can only be column values or constants.

D. They a lways return a single result row for every row of a queried table.

E. They c an return a data type value different from the one that is referenced.

Answer: DE

2. Which SQL statements would display the value 1890.55 as $1,890.55? (Choose three .)

A. SELECT TO_CHAR(1890.55,'$0G000D00')

FROM DUAL;

B. SELECT TO_CHAR(1890.55,'$9,999V99')

FROM DUAL;

C. SELECT TO_CHAR(1890.55,'$99,999D99')

FROM DUAL;

D. SELECT TO_CHAR(1890.55,'$99G999D00')

FROM DUAL;

E. SELECT TO_CHAR(1890.55,'$99G999D99')

FROM DUAL;

Answer: ADE

3. Examine the structure of the SHIPMENTS table:

name Null Type

PO_ID NOT NULL NUMBER(3)

PO_DATE NOT NULL DATE

SHIPMENT_DATE NOT NULL DATE

SHIPMENT_MODE VARCHAR2(30)

SHIPMENT_COST NUMBER(8,2)

You want to generate a report that displays the PO_ID and the penalty amount to be paid if the SHIPMENT_DATE is later than one month from the PO_DATE. The penalty is $20 per day.  Evaluate the following two queries:

SQL> SELECT po_id, CASE

WHEN MONTHS_BETWEEN (shipment_date,po_date)>1 THEN

TO_CHAR((shipment_date - po_date) * 20) ELSE 'No Penalty' END PENALTY

FROM shipments;

SQL>SELECT po_id, DECODE

(MONTHS_BETWEEN (po_date,shipment_date)>1,

TO_CHAR((shipment_date - po_date) * 20), 'No Penalty') PENALTY

FROM shipments;

Which statement is true regarding the above commands?

A. Both execute successfully and give correct results.

B. Only the first query executes successfully but gives a wrong result.

C. Only the first query executes successfully and gives the correct result.

D. Only the second query executes successfully but gives a wrong result.

E. Only the second query executes successfully and gives the correct result.

Answer: C

4. Which two statements are true regarding the USING and ON clauses in table joins? (Choose two.)

A. Both USING and ON clauses can be used for equijoins and nonequijoins.

B. A maximum of one pair of columns can be joined between two tables using the ON clause.

C. The ON clause can be used to join tables on columns that have different names but compatible data types.

D. The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause.

Answer: CD

5. Which two statements are true regarding single row functions? (Choose two.)

A. They a ccept only a single argument.

B. They c an be nested only to two levels.

C. Arguments can only be column values or constants.

D. They a lways return a single result row for every row of a queried table.

E. They c an return a data type value different from the one that is referenced.

Answer: DE

6. Which SQL statements would display the value 1890.55 as $1,890.55? (Choose three .)

A. SELECT TO_CHAR(1890.55,'$0G000D00')

FROM DUAL;

B. SELECT TO_CHAR(1890.55,'$9,999V99')

FROM DUAL;

C. SELECT TO_CHAR(1890.55,'$99,999D99')

FROM DUAL;

D. SELECT TO_CHAR(1890.55,'$99G999D00')

FROM DUAL;

E. SELECT TO_CHAR(1890.55,'$99G999D99')

FROM DUAL;

Answer: ADE

7. Examine the structure of the SHIPMENTS table:

name Null Type

PO_ID NOT NULL NUMBER(3)

PO_DATE NOT NULL DATE

SHIPMENT_DATE NOT NULL DATE

SHIPMENT_MODE VARCHAR2(30)

SHIPMENT_COST NUMBER(8,2)

You want to generate a report that displays the PO_ID and the penalty amount to be paid if the SHIPMENT_DATE is later than one month from the PO_DATE. The penalty is $20 per day.

Evaluate the following two queries:

SQL> SELECT po_id, CASE

WHEN MONTHS_BETWEEN (shipment_date,po_date)>1 THEN

TO_CHAR((shipment_date - po_date) * 20) ELSE 'No Penalty' END PENALTY

FROM shipments;

SQL>SELECT po_id, DECODE

(MONTHS_BETWEEN (po_date,shipment_date)>1,

TO_CHAR((shipment_date - po_date) * 20), 'No Penalty') PENALTY

FROM shipments;

Which statement is true regarding the above commands?

A. Both execute successfully and give correct results.

B. Only the first query executes successfully but gives a wrong result.

C. Only the first query executes successfully and gives the correct result.

D. Only the second query executes successfully but gives a wrong result.

E. Only the second query executes successfully and gives the correct result.

Answer: C

8. Which two statements are true regarding the USING and ON clauses in table joins? (Choose two.)

A. Both USING and ON clauses can be used for equijoins and nonequijoins.

B. A maximum of one pair of columns can be joined between two tables using the ON clause.

C. The ON clause can be used to join tables on columns that have different names but compatible data types.

D. The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause.

Answer: CD

  11g OCA是在10g OCA基础上升级的,如需下载更多的题库,你可以登录killtest题库网!

 

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