a2zinterviews

57.	What is a fan trap?
	A one to many join links a table which is in turn linked by a one to many join. This type of fanning out of one to many joins is called a Fan trap.
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58.	What are the different @ Functions?
	@Aggregate_Aware @Prompt @Script @Select @Variable @Where
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59.	What is multidimensional analyses?
	A multi dimensional analyses is a technique to modify the data so that the data can be view from different prospective and at the different levels of details.
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60.	What are the disadvantages of using a Alias?
	When we create Alias, it creates a new/extra table and this increases the number of tables in the universe, and this can be a problem, if performance is a issue.
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