Common types of storage engines and columns for 04-mysql

1. Database classification in MySQL

2. The storage engine in MySQL

data in MySQL is stored in files (or memory) in a variety of different technologies. Each of these technologies uses different storage mechanisms, indexing techniques, locking levels, and ultimately providing different capabilities and capabilities. by selecting different technologies, you can gain additional speed or functionality to improve the overall functionality of your application.

MyISAM: has a high insert, query speed, but does not support transactions, foreign keys are not supported .

InnoDB: supports transactions, supports foreign keys, supports row-level locking, and has low performance . the InnoDB storage Engine provides transactional security with commit, rollback, and crash resiliency. However , compared to myisam, processing is inefficient and consumes more disk space to preserve data and indexes.

3. Common types of MySQL columns

Common types of storage engines and columns for 04-mysql