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Join path Problem
What is joinpath problem?


  
Total Answers and Comments: 2 Last Update: April 08, 2008     Asked by: kusam_m 
  
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January 02, 2008 04:19:34   #1  
amchoo_vr Member Since: January 2008   Contribution: 1    

RE: Join path Problem
A join path is a  series of joins  that a query can  use to access data in the  tables linked by the joins.
Join path problem arises due to limited  way that lookup and  fact tables are related  in a  relational database.Three major join path problems are:
1. Loop
2. Chasm Trap
3. Fan Trap

This can be resolved by using aliases.

 
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April 08, 2008 06:23:28   #2  
vams_gk Member Since: July 2007   Contribution: 4    

RE: Join path Problem
we have a multiple options to solve join problem
creation alias tables for loop resolve
detect contexts
traps:
 chasam trap(m:1:m)
fantraps(1:m||)

 
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