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How does a query tree represent a relational algebra expression? Ans: This includes transforming an initial expression (tree) into an equivalent expression (tree) that is
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
in case of functional dependencies how we get the higher normal form.
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Timestamp Ordering Protocol A timestamp is a tag that can be attached to any transaction or any data item, which indicates a specific time on which the transaction or data item
The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a) A transaction executing at site A updat
FDs in Relationships: Enrols Relationship: None as it is many to many Teaches Relationship : Course code → Instructor Instructor → Course code The next question is:
Determine the benefits of Object oriented design OOD also gives reusability, which saves time, costs and productivity gains through direct mapping to properties of Object-Orie
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