etl data warehouse concepts

BI architecture and data warehouse design (14:26:41)BI architecture and data warehouse design A data warehouse solution is often related to a large Bi strategy. When you plan to use the fast tracing architecture, the most impo

A data warehouse needs to obtain different types of data from different data sources, and convert these huge amounts of data into available data for users, to provide data support for e

A data warehouse needs to obtain different types of data from different data sources, and convert these huge amounts of data into available data for users, to provide data support for e

solutions. This statement is especially misleading when developing OLAP solutions for a department or a limited user group. The most important feature of a data warehouse is data integration. The most important purpose of a data warehouse is information

The index of the Data warehouse is a tricky issue. If there are too many indexes, the data is inserted quickly but the query response is slow. If too many indexes, the data import is slow and the data is more storage space, but the query responds faster. The role of indexes

Data Three CIF Case-sap BW The main feature is that ERP vendors provide the entire architecture, which saves a lot of design work, and reduces the cost of design and development, encapsulation of the business in BW, reducing the difficulty of long-term maintenance. ERP data resources are very rich and valuable, should be an important source of data warehousing,

According to the author's experience in the Data Warehouse ETL internship in Teradata and Main Street network, we can understand the relationship and difference between them in architecture design. Teradata is generally the enterprise-class data Warehouse, in the Teradata

dw solution, and teradata began to provide its dw product on suse-based OS-running hardware. The advantage of closed hardware is that it is out-of-the-box. It has been strictly tested by the manufacturer and has a high security level. Open Hardware requires the enterprise to possess powerful technical strength and can have a hardware, storage, A team with comprehensive knowledge and capabilities of the operating system is combined into a basic platform that can run dw software, and can quickly

This article mainly introduces the open-source MySQL efficient data warehouse solution: Infobright details. This article describes the features of Infobright, the value of Infobright, the applicable scenarios of Infobright, and the comparison with MySQL, for more information, see Infobright, a column-based database based on the unique patented knowledge grid technology. Infobright is an open-source MySQL

time dimension and address dimension as an example. The creation process is the same. Click Next to create a time dimension (Time).AddressAndDetailCreate a snowflake model sharing dimension Click Next to createDetailDimension. After the creation is complete, it must be processed to take effect. After creating a dimension, you should create a multi-dimensional dataset. A multi-dimensional dataset is a dataset Based on dimension tables and fact tables. It all

and load data into programs and develop data mining and analysis programs. If you do not have an ERP platform yet, you need to purchase a storage device and use the extract-transform-load (ETL) software to import data to the data wareho