What does it mean to say that a database displays bothentity integrity and referential integrity?
Why are entity integrity and referential integrityimportant in a database?
Use the small database shown in Figure Q3.5 toillustrate the difference between a natural join, an equijoin, andan outer join. The SQL script files (Oracle and SQLServer) for allof the data sets used available in Moodle.
Create the basic ERD for the database shown in FigureQ3.5.
Both the Chen and Crow’s Foot solutions should be shown. (usedthe PowerPoint template to produce the first of the two Crow’s FootERDs and Visio Professional to produce the second of the two
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