📅  最后修改于: 2023-12-03 14:44:25.099000             🧑  作者: Mango
Microsoft SQL Server Analysis Services (SSAS) is an analytical data engine used to solve complex business problems. It provides online analytical processing (OLAP) and data mining functionality for Business Intelligence applications.
SSAS has three distinct components:
Microsoft SQL Server Analysis Services offers an intuitive and robust solution for business intelligence applications. It provides features like OLAP operations, Data Mining, Data Management Functions, High Scalability, and Integration with other Microsoft BI technologies. With SSAS, companies can access real-time insights into complex business problems, enabling better informed, data-driven decision-making.
# MS SQL Server-Analysis Services
Microsoft SQL Server Analysis Services (SSAS) is an analytical data engine used to solve complex business problems. It provides online analytical processing (OLAP) and data mining functionality for Business Intelligence applications.
## Architecture
SSAS has three distinct components:
1. Data source: The source data for the SSAS analysis is stored in relational databases, data warehouses or multidimensional databases.
2. Analysis Services: It comprises two main components: Multidimensional Models and tabular models. Multidimensional models offer slicing and dicing data along with calculated measures defined in the cube. Tabular models offer a similar structure as a regular relational database model where you have tables, columns, and relationships.
3. Client Applications: The query and reporting tools access data and metadata from the Analysis Services through client applications such as SQL Server Management Studio (SSMS), SQL Server Data Tools (SSDT), or Microsoft Excel.
## Key Features
1. OLAP operations: SSAS allows analyzing large amounts of data in real-time, enabling users to slice and dice data hierarchy, navigate to different dimensional levels, and drill up/down the hierarchies to understand the data relationships.
2. Data Mining: SSAS provides a set of algorithms to discover insights and hidden patterns in the data.
3. Data Management Functions: SSAS provides administrative functions to manage and control the processing, security, and backup of data.
4. High scalability: It supports large datasets and concurrent queries with fast response times.
5. Integration with other Microsoft BI technologies: SSAS can be integrated with other Microsoft BI technologies like SQL Server Reporting Services (SSRS) and Power BI.
## Benefits
1. Easy to use: With Microsoft SQL Server Management Studio, it's easy to create database schemas and set up an SSAS project. It comes with a graphical user interface, which makes it easy to follow the step-by-step process when building a multidimensional model or a tabular model.
2. Improved Performance: SSAS helps to speed up the processing of data queries and analyses, providing fast response times.
3. Reduced load on the source system: By storing data into multidimensional databases or tabular models, SSAS reduces the need for querying the source system.
4. Enhanced Decision-Making: SSAS provides users with better insights into business data, enabling more informed decision-making on short notice.
## Conclusion
Microsoft SQL Server Analysis Services offers an intuitive and robust solution for business intelligence applications. It provides features like OLAP operations, Data Mining, Data Management Functions, High Scalability, and Integration with other Microsoft BI technologies. With SSAS, companies can access real-time insights into complex business problems, enabling better informed, data-driven decision-making.