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lenee
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Registered: Aug 2001
Location: Bridgetown
Country: Barbados
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 need some help!!
hi everyone..i need some help on understanding some concepts. I've been having trouble understanding the concept of primary keys and foreign keys. can anyone help me with those..
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 01-20-02 01:30 AM
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wbafrank
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Registered: Nov 2001
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01-20-02 02:00 AM
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wbafrank
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Registered: Nov 2001
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Certifications: MCP, MCSA, MCSE, MCSD, MCDBA, A+, CCNA, i-Net+, M CIW SD, CIW P, CIW Associate
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 Try this.....
 For some reason this came thread came up twice - must have double clicked!!
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01-20-02 02:02 AM
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lenee
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Registered: Aug 2001
Location: Bridgetown
Country: Barbados
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Certifications: A+, MCSE, MCDBA
Working on: CISSP, CIW, CCNA
Total Posts: 70
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01-20-02 01:20 PM
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MensaBoy
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Registered: Jan 2002
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Foreign keys are primary keys that have traveled to distant tables and speak with funny accents.
Primary keys are those fields in the column that uniquely identifies the tuple (row) in a normalized table.
What makes a table normalized?
All other fields in the tuple depend upon:
1. The Key
2. The whole Key
3. And Nothing But the Key
So help you, Codd
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01-22-02 02:17 AM
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