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1.Why we need data mining? Give an example to illustrate your answer.
2. Why data mining is considered as "misleading name"?
3. Distinguish the difference between database and data warehouse? Give 4 differences at least.
4. Discus the major difference between relational database and object oriented database?
5. Text databases may be highly unstructured, semi structured and well structured. Give an example for each.
6. How can data mining affect our privacy? Give examples to illustrate your answer.
DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
Using Literal Character String Example: To print IS A as one string with column name employee SELECT ENAME || ' IS A ' || JOB AS "EMPLOYEE" FROM EMP;
What is theta join explain? Theta Join - The theta join operation is an extension to the natural-join operation which permits us to merge selection and a Cartesian
Explain five duties of Database Administrator? 1. DBA administers the three stages of the database and, in consultation along with the whole user community, sets up an defin
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Law Associates is a large legal practice based in Sydney. You have been asked to design a data model for the practice based upon the following specification: The practice employs
Chapter 1 - Profile for the Organization You have to select an organization of your choice and assume that you work for that organization. Now you must prepare a brief profile of t
PRINCIPLES OF DATABASE 1. State the following terms: a) Database b) Database Management System c) Entity d) Attribute e) Relationship 2. Discuss the Three Level Architecture
what are the main characteristics of database
atient(PNumber, Name, NHS_no, Amount_due, DNO, Doctor, Medical_Treatment), relation of schema Staff(StaffNum, Name, DNO, Task) and relation of schema Dept(DNO, Name, Location, Dire
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