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Information Packages(IP) are advanced by some author as a way of building dimensional models - e.g. star schemas. Explain what IPs are and Give an example of it\'s use in building a dimensional model.

  
Total Answers and Comments: 0 Last Update: January 13, 2006     Asked by: Rokeya Begum 
  
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Answer posted by Chintan on 2005-05-22 18:34:55: A relational database schema organized around a central table (fact table) joined to a few smaller tables (dimension tables) using foreign key references. 
Latest Answer : Star schema is a simplest form of data warehouse schema., consists of fact tables (possibly one) and referenced by number of dimension tables.  The appearance is like (an centralized fact and surrounded by number of dimensions) a star and hence got the ...
Latest Answer : Dimensional modelling consist of 3 stages1.conceptual Requirementshere business architect should be clear with facts and levels (data for Dimension table)2.Logical requirementshere he has to design dimension table with levels, and c=fact table with facts ...
Answered by Girinath.S.V.S on 2005-03-17 06:40:48: Snowflake schemas normalize dimensions to eliminate redundancy. That is, the dimension data has been grouped into multiple tables instead of one large 
Latest Answer : Closely related to the star schema, the snowflake schema is represented by centralized fact tables which are connected to multiple dimensionsIn the snowflake schema, however, dimensions are normalized into multiple related tables whereas the star schema's ...
Answered by sunitha on 2005-04-28 21:17:53: ETL is extraction,trasformation and loading,ETL technology is used for extraction the information from the source database and loading it to the target database 
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Answer posted by Riaz Ahmad on 2005-06-09 14:45:26: A dimensional table is a collection of hierarchies and categories along which the user can drill down and drill up. it contains only the textual attributes. 
Latest Answer : Dimension table contains reference data which gives meaning to fact data. You can also view them as parameters across which you want to analyze the fact data. ...
Answered by Satish on 2005-04-29 08:20:29: The Aggreation or calculated value colums will go to Fac Tablw and details information will go to diamensional table. 
Latest Answer : Before broken into coloumns is going to the factAfter broken going to dimensions ...
Answered by sudhakar on 2005-05-09 18:32:18: star schema uses denormalized dimension tables,but in case of snowflake schema it uses normalized dimensions to avoid redundancy...  
Latest Answer : star schema uses denormalized dimension tables,but in case of snowflake schema it uses normalized dimensions to avoid redundancy... ...
Answer posted by Shri Dana on 2005-04-06 19:04:05: OLTP cannot store historical information about the organization. It is used for storing the details of daily transactions while a datawarehouse is a huge 
Latest Answer : OLTP databases are generally volatile in nature which are not suitable for datawarehouses which we use to store historic data ...

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