0. Chapter 5. Database Concepts. Why Study Databases?. All most all Information Systems use an underlying Database to store information Because Databases are v astly superior to spreadsheets and file processing systems. Why Study Databases?.
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MarriedTypes of Relationships
One to One
Get AdvisementTypes of Relationships
One to Many
course has a student
student takes courseTypes of Relationships
Many to Many
Find the name and hire date of the manager working on the sales manual project
Schema - A description of the database
Subschema – describes a subset of the database and which users have access to this subset