mysql-engines.sql

/**

InnoDB:    The default storage engine in MySQL 8.0. InnoDB is a transaction-safe (ACID compliant) storage engine for MySQL 
           that has commit, rollback, and crash-recovery capabilities to protect user data. InnoDB row-level locking 
           (without escalation to coarser granularity locks) and Oracle-style consistent nonlocking reads increase multi-user 
           concurrency and performance. InnoDB stores user data in clustered indexes to reduce I/O for common queries based on primary keys. 
           To maintain data integrity, InnoDB also supports FOREIGN KEY referential-integrity constraints. 

MyISAM:    These tables have a small footprint. Table-level locking limits the performance in read/write workloads, 
           so it is often used in read-only or read-mostly workloads in Web and data warehousing configurations.

Memory:    Stores all data in RAM, for fast access in environments that require quick lookups of non-critical data. This engine 
           was formerly known as the HEAP engine. Its use cases are decreasing; InnoDB with its buffer pool memory area provides a 
           general-purpose and durable way to keep most or all data in memory, and NDBCLUSTER provides fast key-value lookups for huge distributed data sets.

CSV:       Its tables are really text files with comma-separated values. CSV tables let you import or dump data in CSV format, to exchange 
           data with scripts and applications that read and write that same format. Because CSV tables are not indexed, you typically keep 
           the data in InnoDB tables during normal operation, and only use CSV tables during the import or export stage.

Archive:   These compact, unindexed tables are intended for storing and retrieving large amounts of seldom-referenced historical, archived, 
           or security audit information.

Blackhole: The Blackhole storage engine accepts but does not store data, similar to the Unix /dev/null device. Queries always return an empty 
           set. These tables can be used in replication configurations where DML statements are sent to slave servers, but the master server does not keep its own copy of the data.

NDB:       This clustered database engine is particularly suited for applications that require the highest possible degree 
           of uptime and availability.

Merge:     Enables a MySQL DBA or developer to logically group a series of identical MyISAM tables and reference them as one object. 
           Good for VLDB environments such as data warehousing.

Federated: Offers the ability to link separate MySQL servers to create one logical database from many physical servers. Very good for 
           distributed or data mart environments.

Example:   This engine serves as an example in the MySQL source code that illustrates how to begin writing new storage engines. 
           It is primarily of interest to developers. The storage engine is a “stub” that does nothing. You can create tables with this engine, but no data can be stored in them or retrieved from them.


**/

mysql > SHOW ENGINES\G;

//*************************** 1. row ***************************
      Engine: PERFORMANCE_SCHEMA
     Support: YES
     Comment: Performance Schema
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 2. row ***************************
      Engine: InnoDB
     Support: DEFAULT
     Comment: Supports transactions, row-level locking, and foreign keys
Transactions: YES
          XA: YES
  Savepoints: YES
*************************** 3. row ***************************
      Engine: MRG_MYISAM
     Support: YES
     Comment: Collection of identical MyISAM tables
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 4. row ***************************
      Engine: BLACKHOLE
     Support: YES
     Comment: /dev/null storage engine (anything you write to it disappears)
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 5. row ***************************
      Engine: MyISAM
     Support: YES
     Comment: MyISAM storage engine
Transactions: NO
          XA: NO
  Savepoints: NO
...
**/