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Recent questions and answers in Database Management Systems
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Write a SQL view to show the pid and movieid where the name of the actor is ‘Tom Hanks’ and the movie must belong to the ‘Action’ Genre.
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Database Management Systems
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anonymous
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Suppose, there are N number of operations that have to be performed for a transaction. Now describe, in which state the (N-1) operations will be executed and what’s the name of N th operation for that specific transaction.
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Suppose, in the following tavles, there are two relations: employee_details and log_employee respectively. Create a trigger to add some information into employee_details relation the same data will be inserted into log_ employee table.
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Database Management Systems
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anonymous
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Discuss with example what problems this database may suffer due to data redundancy.
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Database Management Systems
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anonymous
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Now, propose an Entity Relationship diagram that represents above information. Document all assumptions that you make about the mapping constraints. Make sure cardinalities and primary keys are clear.
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Database Management Systems
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anonymous
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Duplicate: Why would you choose a database system instead of simply storing data in operating system files? When would it make sense not to use a database system?
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Database Management Systems
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What are some of the disadvantages of Database Management Systems (DBMS)
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Database Management Systems
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What are some advantages of Database Management Systems (DBMS)
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Database Management Systems
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Describe the three generations of Database Management Systems (DBMS)
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Database Management Systems
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What is the role of the end-user?
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Database Management Systems
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What is the role of the application developer?
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Database Management Systems
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What is the role of a physical database designer?
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Database Management Systems
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What is the role of a logical database designer?
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Database Management Systems
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What are the main roles of a database administrator?
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Database Management Systems
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What are the main roles of a data administrator?
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Database Management Systems
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What are five components of DBMS environment and their relation with each other?
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Database Management Systems
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Differentiate between a database, database management system and database system
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Database Management Systems
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What are some examples of database systems?
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Database Management Systems
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Differentiate between primary key and foreign key
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Database Management Systems
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Differentiate between logical data independence and physical data independence
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Database Management Systems
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Differentiate between entity integrity and referential integrity
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Database Management Systems
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Describe any three characteristics of the database approach.
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Database Management Systems
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Importance of transaction in mobile database
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Database Management Systems
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What is logical data independence and why is it important?
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Database Management Systems
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anonymous
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Why would you choose a database system instead of simply storing data in operating system files? When would it make sense not to use a database system?
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Database Management Systems
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anonymous
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What are some Emerging Data Models in Database Management
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