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TOPIC: ER Diagram
#155
ER Diagram 2 Years, 9 Months ago Karma: 1
Hi,

What is an entity relationship diagram??
praju
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#157
Re:ER Diagram 2 Years, 9 Months ago Karma: 5
An entity-relationship (ER) diagram is a specialized graphic that illustrates the interrelationships between entities in a database. ER diagrams often use symbols to represent three different types of information. Boxes are commonly used to represent entities. Diamonds are normally used to represent relationships and ovals are used to represent attributes.

databases.about.com/cs/specificproducts/g/er.htm
en.wikipedia.org/wiki/Entity-relationship_model
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"There is a principle which is a bar against all information, which is a proof against all argument, and which cannot fail to keep a man in everlasting ignorance - that principle is condemnation before investigation." - Herbert Spencer
  
#159
Re:ER Diagram 2 Years, 9 Months ago Karma: 1
ok. Thank you sir!!
praju
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#160
Re:ER Diagram 2 Years, 8 Months ago Karma: 1
Sir , this looks like a version of a flowchart. Are they related???
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#161
Re:ER Diagram 2 Years, 8 Months ago Karma: 5
Flow chart shows the flow of program logic.

They are more like "use cases".
Manuj
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"There is a principle which is a bar against all information, which is a proof against all argument, and which cannot fail to keep a man in everlasting ignorance - that principle is condemnation before investigation." - Herbert Spencer
  
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