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Define blocks?
The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Illustrate how you can use QBE to perform logical AND and OR operation
give some example real-life situations where DBMS are most suiitabe
what is multivalued dependency
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
Examples:- Hierarchical Model: It tells data as and relationships by hierarchy of data values. Figure illustrates an example of hierarchical model. Now a day's these models are
What is OLAP? OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other
Object-oriented decompositions Object-oriented decompositions of systems better are able to cope with change. Each subsystem has a well-defined interface which communicates with
What are the disadvantages of relational data ? Disadvantages • Performance - If the number of tables among that relationships to be established are large and the tables t
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