Set concept is used in which type of modelling, Database Management System

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SET concept is used in which type of modelling?

SET concept is used in Network Model.

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Use the relational algebra to formulate query, Consider the following datab...

Consider the following database schema: STAFF(StaffNo, fName, lName, Position, sex, dob, branchNo) BRANCH(BranchNo, Street, City) Assume the following for the above database

What is aggregate function, What is aggregate function? Briefly describe it...

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Aggregation, What does Aggregation mean?

What does Aggregation mean?

Define various ways in which select statement, Define various ways in which...

Define various ways in which SELECT statement can be used for record selection Technology? SELECT gives you control over a number of aspects for record retrieval: 1) Which

Foreign keys , Foreign Keys and NULL Let us take the relation: ...

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Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file

What is repository?, Problem 1 Why are the operational system keys not ...

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Compute natural join and outer join, For the relations R and S given below:...

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