Archive for June, 2009

High quality and Value for the 1Z0-051 Exam

Thursday, June 25th, 2009

e5b9bfe5919a3Killtest Practice Exams for 1Z0-051 are written to the highest standards of technical accuracy, provided by our certified subject matter experts and published authors for development.

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Evaluate the following CREATE TABLE commands:

CREATE TABLE orders

(ord_no NUMBER(2) CONSTRAINT ord_pk PRIMARY KEY,

ord_date DATE,

cust_id NUMBER(4));

CREATE TABLE ord_items

(ord_no NUMBER(2),

item_no NUMBER(3),

qty NUMBER(3) CHECK (qty BETWEEN 100 AND 200),

expiry_date date CHECK (expiry_date > SYSDATE),

CONSTRAINT it_pk PRIMARY KEY (ord_no,item_no),

CONSTRAINT ord_fk FOREIGN KEY(ord_no) REFERENCES orders(ord_no));

The above command fails when executed. What could be the reason?

A.SYSDATE cannot be used with the CHECK constraint.

B.The BETWEEN clause cannot be used for the CHECK constraint.

C.The CHECK constraint cannot be placed on columns having the DATE data type.

D.ORD_NO and ITEM_NO cannot be used as a composite primary key because ORD_NO is also the FOREIGN KEY.

 

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Oracle Database Vault Oracle Corporation

Sunday, June 21st, 2009

In the United States “06 User Group Conference in collaboration”,Oracle Corporation announced the release of the Oracle Database Vault. The new products are on basis of 25 years of Oracle experience-based data protection which are the industry’s most advanced database security products, and it can restrict to protect sensitive data and the applications on the visit. Oracle Database Vault to enhance the prevention and control capacity and can limit the time allowed, such as a database administrator with higher unauthorized users access to specific information to help enterprises meet the requirements of the regulations.

 

At present, reduce the threat to internal security of the voice is getting higher and higher, coupled with the U.S. Sarbanes Act (Sarbanes-Oxley), U.S. HIPAA Act (Health Insurance Portability and Accountability Act), Japan’s Personal Information Protection Act, the EU Privacy and Electronic Communications Directive and other laws and regulations and privacy protection of the constant introduction of command to protect data from unauthorized access has become a top priority. Oracle Database Vault to help customers protect sensitive information from internal threats and to implement responsibilities directive to require people to complete sensitive tasks. The product features a flexible security control can also help customers implement incremental restrictions on data access, even for conventional users can do this. These controls do not affect database performance, no need to change existing applications or the administrator’s day-to-day duties.

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Oracle Other Oracle Certification 1Z0-051 Exam

Tuesday, June 2nd, 2009
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73. Examine the structure of the PROGRAMS table:

NameNull? Type

———- ————- —————

PROG_ID NOT NULL NUMBER(3)

PROG_COST NUMBER(8,2)

START_DATE NOT NULL DATE

END_DATE DATE

Which two SQL statements would execute successfully? (Choose two.)

A.SELECT NVL(ADD_MONTHS(END_DATE,1),SYSDATE)

FROM programs;

B.SELECT TO_DATE(NVL(SYSDATE-END_DATE,SYSDATE))

FROM programs;

C.SELECT NVL(MONTHS_BETWEEN(start_date,end_date),’Ongoing’)

FROM programs;

D.SELECT NVL(TO_CHAR(MONTHS_BETWEEN(start_date,end_date)),’Ongoing’)

FROM programs;

Answer: AD

 

74. The PRODUCTS table has the following structure:

NameNull?Type

——————- ————-

PROD_IDNOT NULLNUMBER(4)

PROD_NAMEVARCHAR2(25)

PROD_EXPIRY_DATEDATE

Evaluate the following two SQL statements:

SQL>SELECT prod_id, NVL2(prod_expiry_date, prod_expiry_date + 15,”)FROM products;

SQL>SELECT prod_id, NVL(prod_expiry_date, prod_expiry_date + 15) FROM products;

Which statement is true regarding the outcome?

A.Both the statements execute and give different results.

B.Both the statements execute and give the same result.

C.Only the first SQL statement executes successfully.

D.Only the second SQL statement executes successfully.

Answer: A

 

 

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