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Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.
(a) Why did SAP introduce the extended star schema?
UNION If R1 and R2 are two union compatible relations then R3 = R1 ∪ R2 is the relation having tuples that are either in R1 or in R2 or in both. In case, R3 will have tuples
About Attribute inheritance
How nulls are treated in comparison operator? Along with comparison (relational) operators, the null values are ignored as we cannot derive the relation along with the given op
Q. Define a weak entity set and its identifying relationship. List the necessary conditions for a meaningful identifying relationship set of a weak entity set. Entity is a t
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
I need to Map an E-R diagram to a relational schema
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