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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Explain the disadvantages of file oriented approach? In the oriented approach Applications are designed in isolation. Design of application is optimized for one application. In
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
Design a generalization–specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attrib
What is the role of ORDER By Clause? ORDER BY clause: The ORDER BY clause permits you to sort the records in your result set. The ORDER BY clause can just be used in select s
Explain what is Aggregation? Aggregation: Aggregation is an significant concept in database design whereas composite objects could be modelled during the design of database a
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
Draw and explain the three level architecture of the database system? A DBMS gives three levels of data is said to follow three-level architecture. The trget of the three-schem
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
Data Warehousing & Mining 1. What is the concept of knowledge discovery in database? 2. Describe the following types of Multidimensional Data Models. • Stars, Snowflakes and
(a) Why did SAP introduce the extended star schema?
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