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In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
#question.ERD of any car
What is a view? How it is related to data independence? A view might be thought of as a virtual table, that is, a table that does not really exist in its own right but is inste
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
Entity types that do not have any key attribute, and therefore cannot be identified independently, are known as weak entity types. A weak entity can be recognized uniquely only by
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
What is the difference between WHERE and HAVING clauses?. Predicates in the WHERE clause applies to every tuple while the predicate in the HAVING clause applies to groups.
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