kriz_cts
New User
Joined: 03 Aug 2005
Posts: 23
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Hi folks,
Can you explain the following table as to how cust-id is a secondary key?
table 'customer'
attributes-customer-no,cust-name,cust-location,cust-id,order-no....
primary key - customer-no
secondary key - cust-id
foreign key - order-no
ii)how can there be multiple rows retrieved if the secondary key is unique? |
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