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Can a filed occur in several field groups.
Yes. But it leads to redundant data redundancy.
What is Nested Trigger? A trigger can also having INSERT, UPDATE and DELETE logic within itself, so when the trigger is fired because of data modification it can also cause ano
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Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
ERD Diagram of Medical Recruitment Agency?
er diagtram for icici
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
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