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Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
Question : Mr. Smith Harry has a car manufacturing company which has recently integrated management information system. He wishes to obtain more information on ethics and socia
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
Hierarchical
Define what Immediate database modification technique uses? Ans: Both undo and redo.
What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
Illustrate the class diagram for class room scheduling system If in any college, the number of classrooms are limited which have to be allocated to various classes and instruct
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
write on the various type of relationalkey
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