What are the commonly used SQL databases?

Commonly used SQL databases include: 1. mysql; 2. SQL Server; 3. Oracle; 4. Sybase; 5. DB2; 6. PostgreSQL, etc. MySQL database is an open source relational database with small size, fast speed and flexible use. Many small and medium-sized websites will choose MySQL as their database.

Commonly used sql databases are:

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1. mysql database

MySQL database is an open source relational database. It was acquired by Oracle in 2009. However, MySQL is still open source and is different from other Compared with the database, it has the characteristics of small size, fast speed and flexible use. Many small and medium-sized websites will choose MySQL as their database.

2. SQL Server database

SQL Server database is a comprehensive database that can be used in medium and large enterprises. It is developed by Microsoft, the world's number one software supplier. Launched by the company, it has great advantages in operability and interactivity compared with other databases.

3. Oracle database

Oracle database is considered a relatively successful relational database. It was launched in 1983 by Oracle, the world's second largest software supplier. . Oracle database has the characteristics of stable operation, complete functions, excellent performance, etc., and its technology is relatively advanced among database products. Generally, large enterprises will choose Oracle database.

4. Sybase database

Sybase is a relational database system developed by the American Sybase Company. It is a typical client/server on UNIX or Windows NT platforms. Large database system in the environment.

5. DB2 database

DB2 database is also a relational database. It is IBM’s flagship product and its functions can also meet the needs of medium and large companies. It can also be used for small and medium-sized e-commerce systems. According to statistics, the number of DB2 users has exceeded 60 million.

6. PostgreSQL database

PostgreSQL database is the most distinctive open source database. It has the most complete data types and supports transactions, subqueries, and multiple versions. Parallel control system and other features.

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