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(a) Identify the main entity types of the company.
(b) Identify the main relationship types between the entity types and determine the multiplicity constraints for each relationship
(c) Identify attributes and associate them with entity or relationship types.
(d) Determine candidate and primary key attributes for each (strong) entity type.
(e) Using your answers (a) to (d) create a single ER diagram. State any assumptions necessary to support your design.
Define Assertions in SQL a. An assertion is a predicate that is expressing a condition we wish the database to always satisfy. b. Domain constraints, functional dependency
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how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
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What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
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