Heroes who are familiar with access, please come in,

Profit Margin: = (Property Sales Table!) [Unit price]-Real estate sales table! [Cost Unit Price]) Real Estate Sales Table! [Transaction Price].

Give it a try.

Access is a relational database management system.

Access is a relational database management system (RDBMS) developed by Microsoft Corporation. It is designed to help users create and manage a database so that they can easily store, organize, find, and manipulate data. Access can be used for database management for individuals, small and medium-sized businesses.

Users can use it to create a variety of different types of database applications, such as inventory management, customer management, budgeting, and financial management, among others. Access provides a user-friendly interface that makes it easy to create, modify, and manage databases. Access is a relational database that uses tables to store data and relationships can be established between these tables.

Access supports many different types of data, such as text, numbers, date, time, **, etc. Access provides powerful query capabilities that users can use to find, filter, and sort data. Access also offers a form feature, which makes it easy for users to create a variety of different types of forms, such as data entry forms, report forms, and more.

Advantages of Access:

1. Low cost: Access is a product of Microsoft Corporation, so its cost is relatively low, suitable for individuals and small businesses.

2. Easy to learn: Access provides a user-friendly interface that makes it easy for users to learn. Access can be used to create an inventory management system that users can use to track inventory, manage merchant and customer information, and more.

3. Customizability: Access provides a variety of different types of mold postures, which users can customize according to their own needs, so as to create database applications that meet their needs.

4. Data processing capability: Access can process a large amount of data, and can filter, sort, and query the data. Access can be used to create a human resource management system that users can use to manage recruitment, training, performance reviews, and more.

5. Multi-user support: Access can support multiple users to access the same database at the same time, which makes multi-person collaboration easier. Access is a powerful, easy-to-use database management system that helps users create and manage databases and provides many different types of features such as queries, forms, reports, and more.

Access is a database management system.

1. Database management system (database management system) is a large-scale software for manipulating and managing databases, which is used to establish, use and maintain databases, referred to as DBMS.

2. It carries out unified management and control of the database to ensure the security and integrity of the database.

3. Users access the data in the database through the DBMS, and the database administrator also maintains the database through the DBMS.

4. It enables multiple applications and users to establish, modify and query databases at the same time or at different times in different ways. Most DBMS provide Data Definition Language (DDL) and Data Manipulation Language (DML) for users to define the schema structure and permission constraints of the database, and to append and delete data.

It is used for data analysis and software development.

Databases are used to process large amounts of data.

Microsoft Office Access (formerly Microsoft Access) is a relational database management system published by Microsoft. It combines the Microsoft Jet Database Engine and the graphical user interface and is a member of Microsoft Office. Access is actually the name of another Microsoft messaging program that wants to compete with Procomm and other similar programs.

However, Microsoft later confirmed that this was a failed plan and suspended it. A few years later, they renamed it database software. In addition, access is a function name in C and a switch trunk mode.

Microsoft Access is widely used in many places, such as small businesses, departments of large corporations, and developers who love programming to make desktop systems that work with data. It is also commonly used to develop simple web applications that run on Internet Information Services using ASP technology, and more complex web applications that use PHP MySQL or ASP, Microsoft SQL Server or Oracle

The personnel department is used to manage every personnel file, and the Internet café is used to record the time when everyone is off the Internet, otherwise how to settle accounts with Internet worms?

Simply put, it is used to store and manage data.