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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
what characterizes the levels in RAID technology
I need an ERD created for any original database(can be on anything). It needs to be 3NF. I then need all the CREATE STATEMENTS, INSERT STATEMENTS(anything you can think of as long
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
Question : Mr. Smith Harry has a car manufacturing company which has recently integrated management information system. He wishes to obtain more information on ethics and socia
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Define the terms i) DDL ii) DML DDL: Data base schema is particular by a set of definitions expressed by a special language known as a data definition language. DML: A data
What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) : (1) Data Redundancy and Inconsistency: Since differen
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);
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