a2zinterviews

96.	What is Aggregate Awareness?
	Aggregate awareness is a feature of DESIGNER that makes use of aggregate tables in a database. These are tables that contain pre-calculated data. The purpose of these tables is to enhance the performance of SQL transactions; they are thus used to speed up the execution of queries.
	Discuss Your Name Your Email-ID Your Answer

97.	What is the Supervisor module used for?
	SUPERVISOR is the product you need in order to set up and maintain a secure environment for Business Objects products. It provides you with a powerful and easy–to–use structure for distributing information to be shared by all users. This information is centralized through relational data accounts called repositories.
	Discuss Your Name Your Email-ID Your Answer

93.	What are aliases?
	An alias is a logical pointer to an alternate table name. The purpose of an alias is to resolve loops in the paths of joins. In some cases, more than one alias may be necessary for a given table. As you create aliases, Designer may prompt you to create other aliases.
	Discuss Your Name Your Email-ID Your Answer

94.	What are the disadvantages of using a Alias?
	When we create Alias, it creates a new/extra table and this increases the no.of tables in the universe, and this can be a problem, if performance is a issue.
	Discuss Your Name Your Email-ID Your Answer

95.	Can we have a report with multiple data sources?
	Yes.
	Discuss Your Name Your Email-ID Your Answer