Posted by: Ashish Kumar | April 11, 2009

Link and Join


ashishk1

What is difference between Link and Join?

 
Links and Joins have following differences
Relationship:        
 
Joins: Joins are configured between a Business Component and a table.
Links: Links are configured between 2 Business Components. 
            They represent Parent Child relationship Cardinality:
 
Joins: Joins have 1:1 & M:1 cardinality.
Links: Links have 1:M & M:M cardinality.
 
Configuration:
 
Joins: Joins are configured as child properties of a BC.
Links: Links are created through Link Object in Siebel tools and they are referenced
           in Business Objects and Multivalue Links (MVL) to establish parent child relationship.
 
Examples:
 
Joins: A Service Request can only have a single owner. So a Join is created in the 
            Service Request BC to pull the owner information from the S_USER.
Links: An Account can have multiple Addresses. A link between BC: Account & 
            BC: Business Address reflects this 1:M relationship.
 
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