The ENGINE in mysql = InnoDB; What is the meaning?

The storage engine is InnoDB. Nnodb is the first data storage engine on MySQL to provide foreign key constraints, in addition to providing transactional processing, InnoDB also supports row locks, provides consistent, non-lock reads like Oracle, increases the number of concurrent read users and improves performance without increasing the number of locks. InnoDB's design goal is to maximize performance when dealing with large volumes of data , and its CPU utilization is the most efficient of all other disk-based relational database engines.

InnoDB is a complete database system placed in the background of MySQL, InnoDB has its own buffer pool, can buffer the data and index, InnoDB also holds the data and index in the table space, may contain several files, this and MyISAM table is completely different, in MyISAM, The table is stored in a separate file, and the size of the InnoDB table is limited only by the size of the operating system file, typically 2GB.

The ENGINE in mysql = InnoDB; What is the meaning?