What are the differences between MySQL and Oracle?

Overview:

MySQL is a relational database management system, which is one of the most popular relational database management systems.

Relational databases in MySQL store data in different tables instead of putting all data in one big warehouse, which increases speed and flexibility. SQL is the most commonly used standardized language for accessing MySQL databases. The software implements a dual licensing policy, including community version and commercial version. It has the advantages of compactness, high speed, low cost, etc., and it is also open source. Widely loved by many developers.

MySQL Database

Oracle Database, also known as Oracle RDBMS, referred to as Oracle. Oracle database system is a set of software products with distributed database as the core provided by Oracle Corporation of the United States (Oracle). It is currently one of the most popular client/server (client/server) or B/S architecture databases, such as SilverStream. It is a kind of middleware based on database. Oracle database is currently the most widely used database management system in the world. As a general database system, it has complete data management functions; as a relational database, it is a complete relational product; as a distributed database, it implements Distributed processing capabilities, but all its knowledge, as long as you learn Oracle knowledge on one type of machine, you can use it on various types of machines.

The difference between MySQL and Oracle

• Memory size: The memory occupied by MySQL after installation is much smaller than that of Oracle. When the database file is created later, the file memory of MySQL is also smaller than that of Oracle. Oracle.

• Open source or not: MySQL is open source, while Oracle is paid and expensive.

• Flexibility: MySQL is far more flexible than Oracle. SQL statements can be easily expanded. Insert can insert multiple rows of data at one time, but Oracle does not support this operation.

• Security: MySQL is much less secure than Oracle and is more vulnerable to attacks.

• Partitioned table and partitioned index: MySQL’s partitioned table is not yet mature and stable; Oracle’s partitioned table and partitioned index functions are very mature and can improve the user experience of accessing the db.

• If MySQL encounters problems when performing update operations, data may be lost because it submits SQL statements by default. Oracle guarantees that all committed transactions can be recovered.

• Submission methods are different. MySQL automatically commits by default, while Oracle requires manual commit.

• Performance diagnostics. MySQL has fewer diagnostic tuning methods, while Oracle can implement many diagnostic tuning methods, such as addm, sqltrace, awr, etc.

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