SP09-Feb19-Lec05-summary-MIS310 - o Cardinalities of...

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MIS310-DUTTA-SPRING2009 Classnotes, Lecture 05, 02-19-2009 Summary of Lec04 : o Steps in database design o Conceptual design, logical design o Conceptual DB model – ER diagram o Entity Representation o Types of relationships (1:1, 1:N, N:M)
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Unformatted text preview: o Cardinalities of relationships (Optional, mandatory, one, many) o Weak entities and identifying relationships o N:M relationships with attributes o Self referencing relationships (Unary) OPEN ER ASSISTANT...
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This note was uploaded on 02/21/2011 for the course MIS 310 taught by Professor Staff during the Spring '08 term at George Mason.

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SP09-Feb19-Lec05-summary-MIS310 - o Cardinalities of...

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