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What is the main difference between read-only and update methods?
A read-only method does not affect the values of a variable in an object, whereas an update method may alter the values of the variables
(a) Why did SAP introduce the extended star schema?
Define Network DBMS The NDBMS is built primarily on a one-to-many relationship, but where a parent-child representation between the data items cannot be ensured. This may occur
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
i need to implememnt a treee based mining algorithm. do you have an expert that can do that?
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
what is Nested relational model? Explain with examples.
Which component is not included in database environment ? A users component is not included in database environment.
Define physical and logical data independence. How does this architecture help in achieving these? Data independence entails that change in one view must not need a change in t
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