Database Traits Relational
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Are all databases relational?
Employee ID Employee Name Street Address City State
E001 Jane Andrews 1 Ave A RedondoBeach CA
E002 Michelle Jones 200 Archer Ave El Segundo CA
E003 Mike Smith 100 Ocean Blvd Santa Monica CA
E004 Ann Lee 100 Smith Blvd Culver City CA
Table A
Employee ID Last Review Date Salary Bonus Paid?
E001 5/1/2009 $50,000 N
E002 1/1/2009 $46,000 Y
E003 2/1/2009 $35,000 N
E004 4/1/2009 $78,000 Y
Table B
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Solution Summary
The expert examines database trait relational.
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Are all databases relational?
No.
Other than relational there are other database models being used.
1.Dimensional model:
This used mostly for data warehouses.
The reason is data can be easly summerized using OLAP ...
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