MySQL Storage Engines Explained

Commonly used storage engines in MySQL include:

1. InnoDB is the default storage engine for MySQL, which supports features such as transactions, row-level locking, and foreign keys, making it suitable for handling a large number of concurrent transactions.
2. MyISAM: MyISAM is an older storage engine that does not support transactions or row-level locking, but it performs well in scenarios with heavy reads and minimal writes.
3. The Memory storage engine stores data in memory, making it suitable for handling temporary or cache data. However, data will be lost after the database restarts.
4. NDB Cluster is a clustered storage engine that supports features such as high availability, horizontal scaling, and automatic sharding, making it suitable for handling large-scale distributed databases.
5. The Archive storage engine is used for archiving data, allowing for compression and fast insertion of data, but does not support indexing or updating operations.
6. CSV storage engine stores data in CSV format files, suitable for data import and export operations.
7. The Blackhole storage engine does not store data directly, but instead writes data to a log file, making it suitable for scenarios like data replication and synchronization.

Besides the storage engines mentioned above, there are also other storage engines such as Federated and Merge. Different storage engines are suitable for different application scenarios, and developers can choose the appropriate storage engine based on specific needs.