Access is a relational database management system, and its main features are: \ x0d \ (1) The objects managed by Access are tables, queries, forms, reports, pages, macros and modules, all of which are stored in suffix (.mdb), which is convenient for users to operate and manage. \x0d\(2) Object-oriented Access is an object-oriented development tool, which objectifies various functions in the database system and encapsulates various functions of database management in various objects. It regards an application system as a series of objects. For each object, it defines a set of methods and properties to define the behavior and foreign countries of the object. Users can also extend methods and properties to objects as needed. Through the methods and attributes of objects, the operation and management of the database are completed, which greatly simplifies the development work of users. At the same time, this object-oriented development method makes it easier to develop applications. \x0d\(3) Friendly interface and easy operation. Access is a visualization tool, but its style is exactly the same as Windows. Users want to generate objects and apply them, just drag them with the mouse, which is very intuitive and convenient. The system also provides table generator, query generator, report designer, database wizard, table wizard, query wizard, form wizard, report wizard and other tools, which are simple to operate and easy to use and master. \x0d\(4) Integrated environment, which deals with all kinds of data information, accesses the integrated development environment based on Windows operating system, and integrates various wizards and generator tools, which greatly improves the working efficiency of developers and makes it convenient and orderly to establish databases, create tables, design user interfaces, design data queries and print reports. \x0d\(5)Access supports ODBC (Open Database Connection). Using the powerful functions of DDE (Dynamic Data Exchange) and OLE (Object Linking and Embedding) of Access, you can embed bitmaps, sounds, Excel tables and Word documents in data tables, and you can also build dynamic database reports and forms. Access can also apply programs to the network and connect with dynamic data on the network. Using database to access page objects to generate HTML files makes it easy to build Internet/Intranet applications.