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Create a view emp_dep containing e_name and number of dependents from the tables employee and dependent of (i) CREATE VIEW emp_dept AS SELECT ename, COUNT(*) FROM employee, dep
describe all the tables you have created. ?get table_name, status, num_rows, user_stats in user_tables system view ?get table_name, constraint_name, constraint_type in user_constr
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
I need an ERD created for any original database(can be on anything). It needs to be 3NF. I then need all the CREATE STATEMENTS, INSERT STATEMENTS(anything you can think of as long
Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
What are the two types of errors? The two types of errors are: a) Logical error b) System error
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
what is bogus empowerment. And what is genuine empowerment
Explain the ISA relationship Answer: ISA relationship - ISA notation is employed in generalization/ specialization to depict relationship among lower and higer level entity s
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