TAILIEUCHUNG - Oracle Essbase 9 Implementation Guide- P80

Oracle Essbase 9 Implementation Guide- P80:Essbase is a multidimensional database management system. The name Essbase stands for Extended Spread Sheet dataBASE. Using the custom add-in provides the end-user with near seamless compatibility in the Microsoft Excel spreadsheet program. | Essbase Analytics Option Pros and cons of ASO The ASO is fast becoming the standard for extra large Essbase databases. Where the need for high speed data retrieval for reporting and analysis can eclipse the need for full-featured functionality ASO fills in nicely. Here we will describe what we feel are some of the positive features of the ASO as well as some of the not so positive features for you. Pros Listed below are just a few high-level features that we feel makes the Essbase ASO a good choice Easy optimization massive data scalability reduced disk space and upto 100 times faster. Database creation is accomplished by either migrating a BSO outline or defined as new after application creation. Outline dimensions will not need to be designated as dense or sparse. Outline is validated every time a database is started. Database calculation or aggregation of the database can be predefined by defining aggregate views. Calculation order is not relevant for database calculation but is relevant for dynamic calculation formulas. Limited write back ability. At the end of a data load if aggregation exists the values in aggregation are recalculated and updated automatically. Aggregate storage database outlines are page-able. This feature significantly reduces memory usage for very large database outlines. Cons Listed below are a few high-level features that we feel you may need to be wary of when using the Essbase ASO Aggregate storage applications have some limitations that do not apply to block storage applications with regard to consolidations calculations and overall robust functionality. Can store only one database per application. Names reserved for table spaces cannot be used as application or database names. -------------------------------------- 380 ------------------------------------ Download at Chapter 10 Accounts dimension does not support time balance members and association of attribute dimensions. On non-account dimensions there are restrictions

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