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Consider the table student and list names of students in the departments other than maths and computer.
SELECT std_name FRM student WHERE dept_name NOT IN(‘Maths','Computer);
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
a) Distinguish between ‘database' and ‘Database Management Systems (DBMS)'. b) List and briefly describe five potential benefits of the database approach compared to conventio
What do you mean through integrity constraints? Integrity Constraints -An integrity constraint is a condition specified on a database schema and restricts the data in which
Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
The Database administrator (DBA) uses the data dictionary in each phase of a database life cycle, beginning from the data gathering phase to the design, execution and maintenance p
Describe how you can simplify Operations. To simplify operation, one should use inheritance, where possible to use, to reduce the quantity of distinct operations. Introduce new
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
What is an object design? Object design is a very interactive method, which decides the relationship among objects, classifies operations on classes, determines overall system
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
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