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Define union compatibility? Explain why INTERSECTION of two relations cannot be performed if they are not union compatible? Two relations R(A1, A2,-------, An) and S(B1, B2,--
is Chipo carrying his baby
Problem 1. Write the SQL queries using Data Manipulation Language (DML) statements. Insert values into student table with field names using insert command Display the
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Need for Client Server Computing- Client/Server (C/S) architecture includes running the application on multiple machines in which every machine with its component software tackles
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
What is hash file organization? What are the causes of bucket overflow within a hash file organization? What can be completed to decrease the occurrence of bucket overflow?
Discuss the differences among the candidate keys and the primary key of a relation. Give instance to describe your answer? A candidate key is one that can be used as primary ke
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
explain in detail about time stamp orderting/
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