The data warehouseData Warehouse: A Data Warehouse is a data system used for storing, analyzing, and reporting. The purpose of a data warehouse is to build an integrated data environment for analysis, providing decision support for businesses. The focus of a data warehouse is on analysis, and its results support decision-making in enterprises: A data warehouse does not “produce” any data itself; it obtains data from various external systems. Similarly, a data warehouse does not need to “consume” any data; its results are made available to external applications.

The data analysis Direction of analysis: Batch processing：Analyzing existing data from the past, focusing on historical information. This involves making significant batch changes in the time dimension. (Performing one analysis per week or one analysis per day) Real Time Processing, Streaming: for the moment, analyzing data generated in real time, divided

如何提高工作效率? 为什么要努力的工作？Altman对努力的工作的理解是，作为员工必须想出一条平衡之策，在努力工作的同时，又不至于透支身体。对