Custom Physical Database Design essay paper writing service

← An Information TechnologyNuclear Energy →

Buy Physical Database Design essay paper online

Database security refers to the guarding of an organization’s valuable information and data to prevent unauthorized reading access, altering or deleting of data. Among the most serious threats to security is deliberately trying to access data with no proper authority. Features must therefore be enforced in a database to provide protected and controlled access to the data contained in a database while preserving the integrity of the data at the same time.Oracle offer security checks based on a list of users who are valid, where each user is provided with a unique username and a password. This prevents unauthorized access. A security domain is assigned to each user.

There are also two types of Orace privileges; system and object privileges. System privileges allows uses to access and edit the whole system while object privileges allows the user to access specified database objects. Views are also provided in databases for security purposes. They prevent direct access of the contents of the database tables by the users.Data encryption is also another way to ensure database security. It involves altering the form of the database contents in a manner that is not easily recognizable. The data has to be decrypted for it to be meaningful.

SQL injection refers to the injection or insertion of SQL queries through the input to an application.This can be prevented by cleaning all the variables by learning them through a clean function. The other method would be overwriting mysql_query function so that it replaces your table names.

The physical database design implements the the logical data model in a database.

1.An Occupant is ALLOTED a room from CheckInDate to CheckOutDate. One

 FAMILY can be alloted more than one room.

2. The Occupant PAYS BILL. An Occupant must pay a BILL.

3. An Occupant may USE restaurant FACILITIES. One Occupant can use more than one         FACILITIES.

Mysql commands:

(SSN                    NUMBER(9)          NOT NULL,
 OccupantId         VARCHAR2(20)     NOT NULL,
FamilyHeadSSN    VARCHAR2(20)     NOT NULL,
 Address              VARCHAR2(20)     NOT NULL,
 NoofAdults          VARCHARS2(20)    NOT NULL,
 NoofChildren       CHAR(20)             NOT NULL,);


RoomRate    mediumint(10)  NOT NULL,

RoomType    char(10)   NOT NULL,

RoomStatus   Varchar   NOT NULL,);


FoodId   mediumint(10),

FoodRate   varchar(10),

FoodType   char(10),



BillNo   BIGINT(15),

BillDate   date,

BillTime   char(10),



A database is not complete without all the necessary security measures having been put up. SQL injection is one of the major security threats to a database. Physical database design involves the implementation of the logical database model.

Buy Physical Database Design essay paper online

Related essays

  1. Nuclear Energy
  2. Technology
  3. An Information Technology
  4. Back up Batteries
order now
Live chat!
Planets Live support online chat Live support phone
Our Advantages
300 Words per page
Bottom line
12 pt Times New Roman Double-spaced typed page
Bottom line
MBA and PhD Writers
Bottom line
Relevant and up-to-date
Bottom line
US Writers
Bottom line
100% Quality Guarantee
Bottom line
24/7 Support
Bottom line
24/7 Live Chat
Bottom line
Flexible Discount Program
Bottom line
ANY Difficulty Level!

I ordered my thesis 6 days before the deadline. I received it 2 days later and it was 100% error free. How on earth do you guys do it? It was beautifully written and contained lots of interesting information. I truly do appreciate your efforts.

Billy B., Detroit, MI, USA

Thank you for the extraordinary work that your writer #2827 did on my thesis. I am quite pleased and will definitely do business with your service again in the future. I would like to add that Monica, who works in your customer service department, was more than a little helpful. She was very patient and answered each of my questions knowledgeably and politely. I truly appreciate the great writing and personal assistance. Thanks!

Mark M., Boston, MA, USA

The writing style that the writer used for my dissertation sounded very knowledgeable and professional. The documentation was all accurate, and he used the latest data to substantiate everything. I cannot believe my coursework is finally behind me! Thanks a million,, for always doing a great job.

Randy A., Winnipeg, CANADA

-15% first order  Order now