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Posted Date: 9/21/2012 4:55:09 AM | Location : United States
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Determine the Disadvantages of file based systems, Determine the Disadvanta...
Determine the Disadvantages of file based systems Some of the disadvantages of file based systems are like this: Data redundancy and inconsistency: the dissimilar applic
What is foreign key, What is foreign key? Foreign Key - Let there are...
What is foreign key? Foreign Key - Let there are two relations in tables R and S. Any candidate key of the relation R that is referred in the relation S is known as the forei
Define the relations as tables in sql, Consider the relations given below ...
Consider the relations given below Borrower (id_no, name) Book (accno., title, author, borrower_idno) (a) Define the above relations as tables in SQL forming real world assumptio
Accessing information permissions users, Accessing information about permis...
Accessing information about permissions to all users- Object level permissions: With the use of data dictionary you can see the permissions to user. Let us get the table name fro
Explain the two types of participation constraint, Explain the two types of...
Explain the two types of participation constraint. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
What are the objectives of advance object design, What are the Objectives o...
What are the Objectives of Advance object design After this unit, you shall be able to: combine three OOAD models to obtain operations on the classes; develop algo
Organize the clients from email marketing, Function requirement as given: ...
Function requirement as given: 1> manage fans and likes and followings those information from facebook. twitter. google+ and linkedin etc 2> Organize the clients from email m
Functional dependencies and normalization for relational dat, Consider the ...
Consider the 1ollowin8 relation: CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., crui
List the drawbacks of relational database system, List the drawbacks of rel...
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
Entity integrity constraint - relational constraints, It defines that no pr...
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
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