06-12-2022, 11:39 AM
OLAP cubes, which are built by adding, according to business email list to the requirements of each area or department, the necessary dimensions and indicators of each relational cube. The way of creating, operating and maintaining OLAP cubes is very heterogeneous, depending on the final tool used. Datamart OLTP: They can be based on a simple extract from the data warehouse, however, it is common to introduce improvements in their performance (aggregation and business email list filtering are usually the most common operations) taking advantage of the particular characteristics of each area of the company.
The most common structures in this sense are business email list report tables, which are reduced fact-tables (which add the appropriate dimensions), and materialized views, which are built with the same structure as the previous ones, but with the aim business email list of exploiting the rewriting of queries (although it is only possible in some advanced DBMS, such as Oracle). A Datamart is a departmental database, specialized in storing the data of a specific business area. It is characterized by business email list by having the optimal data structure to analyze the information in detail from all the perspectives that affect the processes of said department.
![[Slika: Email-Database.gif]](http://www.schoolemaillist.com/wp-content/uploads/2022/04/Email-Database.gif)
A datamart can be fed from the data of a datawarehouse, or integrate business email list by itself a compendium of different sources of information. Therefore, to create the datamart of a functional area of the company, it is necessary to find the optimal structure for the analysis of its information, a structure that can be mounted on an OLTP database, such as the datawarehouse itself, or on a database OLAP. The designation of one or the other will depend on the data, the business email list requirements and the specific characteristics of each department.
The most common structures in this sense are business email list report tables, which are reduced fact-tables (which add the appropriate dimensions), and materialized views, which are built with the same structure as the previous ones, but with the aim business email list of exploiting the rewriting of queries (although it is only possible in some advanced DBMS, such as Oracle). A Datamart is a departmental database, specialized in storing the data of a specific business area. It is characterized by business email list by having the optimal data structure to analyze the information in detail from all the perspectives that affect the processes of said department.
![[Slika: Email-Database.gif]](http://www.schoolemaillist.com/wp-content/uploads/2022/04/Email-Database.gif)
A datamart can be fed from the data of a datawarehouse, or integrate business email list by itself a compendium of different sources of information. Therefore, to create the datamart of a functional area of the company, it is necessary to find the optimal structure for the analysis of its information, a structure that can be mounted on an OLTP database, such as the datawarehouse itself, or on a database OLAP. The designation of one or the other will depend on the data, the business email list requirements and the specific characteristics of each department.