Write a short note on an ERD
Write a short note on an ERD?
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An ERD is a full logical presentation of the data for an organization and association. The ERD comprises attributes, entities, cardinalities, and relationships. An ERD is the mechanism there an entity-relationship model is displayed.
Illustrate the five SQL built-in functions.
How any Data Structure application is categorized among files?
Explain the power center repository?
Describe briefly Aggregate transformation?
Explain how in a relation a supertype or subtype is mapped?
Can we have a report with several data providers?
State the steps for “this message could not delete” from the particular tables?
Give a brief introduction of the term Virtual Data Warehousing?
In which case the functional dependencies are not equations? Describe briefly?
Explain the term folder?
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