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This article introduces the knowledge of "how to compare open source databases to choose the right tools". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations! I hope you can read it carefully and be able to achieve something!

What is an open source database?

The difference between open source database management systems and commercial database management systems lies in licenses. Open source databases are open and available free of charge, while proprietary products need to be purchased from suppliers.

Enterprises switching to open source database management systems can reduce the costs associated with traditional system licensing, but may not have vendor support or capacity. Proprietary DBMS options usually provide customers with an appropriate support system.

Functionally, the two types of databases are roughly the same. Let's look at a comparison of four common open source options for relational databases.

MySQL

MySQL is a dual-licensed software supported by Oracle, which has an open source community version and a number of paid options. It has been one of the most popular open source database options for more than a decade. This popularity means that there are many third-party tools and external documentation that make it as easy as possible for you to use this option.

Speed is a priority for MySQL developers when creating the database, and MySQL is still widely considered one of the fastest database options. In addition to speed, MySQL has scripts to help improve the security of user databases. Supported programming languages include C / C + +, Java, Python, and Ruby.

The drawback of MySQL lies in the nature of its dual license. Some features and plug-ins are only available in proprietary versions, and it may be frustrating for companies looking for true open source options. In addition, MySQL remains the critical standard for data management. As long as the enterprise does not need to be 100% compatible with SQL, the enterprise can use this database and expect stable results. The designers of this DBMS chose to build MySQL with a focus on speed rather than following the complete SQL standard of 179 functions.

More and more enterprises in various industries are deploying PostgreSQL, an open source object-relational database system that has existed for more than 30 years.

PostgreSQL has a reputation for reliability and data integrity, and it has been ACID compliant since 2001. The database supports many programming languages, such as .net, C / C + +, Java, Python and so on.

PostgreSQL provides a similar experience for enterprises that are familiar with MySQL. Technically, MySQL is an open source database, but now it has proprietary cloud source modules (managed by Oracle). This has led some open source developers to look for new options, and the most similar option should be PostgreSQL.

The database contains features that MySQL does not have. For example, table inheritance, which allows tables to exist in an acyclic graph dominated by inheritance, and function overloading, allows more than one function to have the same SQL name, as long as they take different parameters.

Regardless of its size or industry, any enterprise can use PostgreSQL because it can handle complex queries and big data sets. If your business wants to deploy it for complex analysis processes, it is ideal for using PostgreSQL. The disadvantage of PostgreSQL is that advanced tools such as parallelization and clustering will require third-party plug-ins.

MariaDB

Another preferred open source option is MariaDB, developed by the original developers of MySQL. The database supports a variety of programming languages, including C / C + +, Java, Perl and Python.

When you use MariaDB, you will see frequent security releases and developers' commitment to maintaining their DBMS security. In addition to the general commitment to security, developers guarantee that MariaDB will remain open source.

Like PostgreSQL, MariaDB is compatible with migrating from MySQL and supports programming languages commonly used in MySQL. This makes it easier for companies looking for change to transition. Most importantly, MariaDB can run WordPress.

The disadvantage of MariaDB is that there is no guarantee that further updates and versions will be released soon, and it lacks built-in support.

SQLite

SQLite is probably the most widely used database engine in the world. SQLite is widely used in mobile phones, most computers, and countless applications. It is common, but it addresses slightly different problems than MySQL or PostgreSQL. The DBMS supports a variety of programming languages, including C / C + +, Java and Python.

SQLite is ideal for businesses with small databases or devices at the edge of the network. SQLite can be deployed across systems and provides local data storage for individual applications and devices. The drawback of SQLite at the enterprise level is that people misunderstand its purpose. It is not intended to match the features and features of the larger options listed in this article, and may disappoint users looking for high scalability. If you need to deal with a lot of data, SQLite is not your best choice.

Applications that require special access for multiple users are also not suitable for SQLite because SQLite can read and write to ordinary disk files, which means that the only applicable access permissions are common permissions included in the underlying operating system.

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