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When you create a relation (Relationship) within an DBMS you are establishing a relationship of a field in one table to a field another table.
Example.
We Have a table Customers
CustomerID
FirstName
LastName
StatusID
The sample fields above are for table Customers
Now the StatusID is an INT field and we need to define a relationship between this field and the StatusID column in the Status table
StatusID
StatusDescription
isActive
Above are examples of the Status table.
To complete our example here we will create a relationship that looks as follows:
Customers->StatusID ---> Status->StatusID
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What is database design?
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That depends on the type of database it is and the design of the Database Annalist.
