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Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
List some instances of collection types? a) sets b) arrays c) multisets
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
sql is relationally complete-justify
I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
Describe Object Relational model ? Object Relational Model - This model combines the characteristics of both relational model and object oriented model. It extends the tradit
#question.ERD of any car
WHAT IS DSS? WRITE ITS REQUIREMENTS.
Write a query to define tables students and teachers as sub tables of people? Create table students of student under people Create table teachers of teacher under people
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