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Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
Q. What is relational algebra and calculus? Explain the relational algebra operators :- Selection and predicate, set operation, joins and division. Sol. Relational Algebra
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
coventions for displaying an ER schema as ER diagram
Differentiate between a unique key and a primary key. - By default, clustered index on column are created by primary key while nonclustered index are created by unique key.
Difference between LEFT OUTER JOIN and RIGHT OUTER JOIN In left outer join tuples from the left-hand-side relation which do not match any tuple in the right-hand-side relation
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
discuss the purpose of the concurrency control?
What are the requirements to ensure the objectives of file management principle is realized?
What is the full form of ODBC ? ODBC stands for Open Database Connectivity.
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