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Difference between MyISAM and InnoDBstorage


  1. MyISAM vs InnoDBStorage:
    Engine TypeMyISAM is a non-transactional storage type, and any write option needs to be rolled back manually (if needed).InnoDB is a transaction storage type that automatically rollbacks the writes if they are not completed.
  2. MyISAM vs InnoDBStorage:
    Locking Locking is the mechanism in MySQL that prevents two users from modifying the duplicate rows at the same time by locking the row. The users can't change the table when locking is enabled.MyISAM uses the default method of table locking and allows a single session to modify the table. This means only one user at a time can alter the table. If another user tries to change the table, they will get a message saying that it is locked. The table locking method is helpful for read-only databases as it doesn't require a lot of memory.InnoDB uses row-level locking of the table. This method supports multiple sessions on the same row by only locking the rows in the modification process. Row-locking is helpful for databases that have multiple users. The only disadvantage of row-level locking is that it consumes a lot of memory, and querying and modifying data takes time.
  3. MyISAM vs InnoDBStorage:
    Foreign Keys A foreign key is a column in one table that links the data to another table. It prevents users from adding records that destroy the link between two tables.MyISAM doesn't support the Foreign key option.InnoDB supports the Foreign Key option.
  4. MyISAM vs InnoDBStorage:
    ACID Properties ACID stands for Atomicity, Consistency, Isolation, and Durability. MyISAM doesn't support ACID properties whereas InnoDB supports ACID properties.
  5. MyISAM vs InnoDBStorage:
    PerformanceInnoDB supports transactional properties, i.e. rollbacks and commits, and has a higher speed of writing. The performance of InnoDB for large volumes of data is better as compared to MyISAM.MyISAM doesn't support transactional properties and is faster to read. As compared to InnoDB, the performance for a high volume of data is less.
  6. MyISAM vs InnoDBStorage:
    ReliabilityInnoDB uses a transactional log to log every operation and hence gives reliable operations. Thus, in case of failure, data can be recovered quickly by using those logs.MyISAM offers no data integrity; hardware failures and canceled operations can cause data to become corrupt.
  7. MyISAM vs InnoDBStorage:
    Caching and IndexingInnoDB supports a large pool of buffers that caches both data and indexes. However, there is no support for a Full-text search.
    The MyISAM key buffer is only meant for indexes, and a full-text search is supported in MyISAM.