database
It is a "warehouse that organizes, stores and manages data according to data structure". In the daily work of economic management, it is often necessary to put some relevant data into such a "warehouse" and handle it according to the needs of management.
For example, the personnel department of enterprises and institutions often stores the basic information of employees (job number, name, age, gender, place of origin, salary, resume, etc.). ) in a table, can be regarded as a database. With this "data warehouse", we can query the basic situation of an employee at any time as needed, and we can also query the number of employees whose wages are within a certain range, and so on.