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I need to Map an E-R diagram to a relational schema
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
give some example real-life situations where DBMS are most suiitabe
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? Question 2 With a necessary example explain (i)
Use a Set operator to create a list of academics who have written or co-written less than 5 papers and also have greater than 3 interests. List their academic number in the output.
Define decision tree classifiers? As the name suggests decision tree classifiers use a tree: Every leaf node has an associated class, and every internal node has a predicate as
Determine the Other System Design Issue How to realise subsystems; through hardware or software? How is object model mapped on chosen hardware software? Mapping
WHAT IS DBMS
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