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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
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Related fields in a database are grouped in which form? Related data fields in a database are grouped to form a data record. (A record is a collection of related fields)
Give some encryption techniques? A) DES B) AES C) Public key encryption
What is horizontal fragmentation? Horizontal fragmentation divides the relation by assuming every tuple of r to one or more fragments
Describe the types of Inheritance 1. Single inheritance 2. Multiple inheritance 3. Hierarchical inheritance 4. Multilevel inheritance
What is a Transaction? A transaction is an event which happens on the database. Generally a transaction reads a value from the database or writes a value to the database. If y
Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
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
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