What do you mean by a fan trap and how would it be resolved? : sap bobi
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Answer / Deepali Sharma
A Fan Trap in SAP BusinessObjects (BOBI) is an error that occurs when a Universe joins too many tables, resulting in a large number of records with few common fields. This can cause the query performance to degrade significantly and may result in a 'fan-shaped' result set. To resolve a Fan Trap, you can use techniques such as filtering data before joining it, using aggregate functions to reduce the number of rows, or optimizing the Universe design by removing unnecessary joins.
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