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write on the various type of relationalkey
What is advantage of two-way association? Two-way association advantages are following: a) Independent of the classes. b) Useful for existing predefined classes that are
Explain about primary key Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate ke
what is query processing?
diagrams and meaning
Where does view definition stored? A view definition is permanently stored as part of the database.
Let us first describe the term relationships. What Are Relationships? A relationship can be defined as: A set of associations or connection, or A rule for communic
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
What are the various symbols used to draw an E-R diagram (any 3)?
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
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