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assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
Give some encryption techniques? A) DES B) AES C) Public key encryption
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
Events4Fun is an event management company in Europe with branches in South America as well. The company is well-known for its efficiency, good-quality services, and affordable char
Represent the following scenarios with E-R diagrams drawn using the ER Assistant software. The diagrams should indicate cardinality and optionality of relationships. Transform each
What is data definition language? Explain it in detail? The SQL DDL allows specification of not only a set of relations, but also information after each relation, containing
Describe integrity constraints? Integrity Constraints - A database is just as excellent as the information stored in it, and a DBMS must therefore help avoid the entry of inc
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
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