Database usage leaderboard: https://db-engines.com/en/ranking
Table of contents
1. Software Introduction
PostgreSQL is a free software object-relational database management system ( ORDBMS ) with complete features. It is an object-relational database management system based on POSTGRES, version 4.2 developed by the Department of Computer Science, University of California . Many of the leading concepts of POSTGRES only appeared in commercial web databases relatively late. PostgreSQL supports most of the SQL standards and provides many other modern features, such as complex queries, foreign keys , triggers , views , transaction integrity, multi-version concurrency control, etc. Similarly, PostgreSQL can also be extended in many ways, such as by adding new data types, functions, operators, aggregate functions , indexing methods, procedural languages, etc. In addition, because of the flexible license, anyone is free to use, modify and distribute PostgreSQL for any purpose.
2. Software download
Download link: https://www.enterprisedb.com/downloads/postgres-postgresql-downloads
Choose to download according to your operating system version.
3. Installation Tutorial
1. Installation wizard
2. Select the installation location
3. Select the data storage directory
4. Set the database password
5. Set the database port
It is recommended to use the default port.
6. During installation
The installation process will take a while, please wait patiently for the program installation to complete.
7. The installation is complete
Click the check box to cancel √, and then click Finish
4. Start the tutorial
1. Search for pgAdmin4 and open the visualization panel program
2. The data database password enters the panel
When you enter this interface for the first time, you will be prompted to enter the database password, just enter the password we set before.
