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Update Operations and Dealing with Constraint Violations There are three basic operations to be executes on relations: Insertion Deletion Update The INSER
Discuss the problem of Spurious tuples and how we may prevent it. Ans: A spurious tuple is, mainly, a record in a database that gets created while two tables are joined bad
explain participation constraints with examples
Adding Redundant Associations for Efficient Access Redundant associations do not add any type of information, therefore during design we should actually examine structure of o
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
can you please explain with the help of suitable example the difference between conflict equivalence and conflict serializability?
Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
A constraint named less_than_20 was defined on the field date_of_birth of table student. Delete this constraint. ALTER TABLE student DROP CONSTRAINT less_than_20;
explain in details about one to one binary relationship
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
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