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Перевести таблицу из innodb в myisam

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Convert from INNODB to MYISAM

However, there are several reasons why it could be better choice for your web application. Data integrity and foreign key constraints Foreign keys establish a relationship between columns in one table and those in another.





For example, you might create a library application where books can be loaned to members. A foreign key constraint would ensure that a member existed before a book could be checked-out.



из innodb таблицу в myisam перевести


Similarly, removing a user would not be possible until all their books were returned. Transactions InnoDB tables support transactions. A transaction allows multiple SQL commands to be treated as a single and reliable unit.


Convert all MyISAM tables to Aria

Consider a banking application where you are transferring money from one account to another. The transaction would only be committed if both accounts were altered successfully. If anything failed, the database would be rolled-back to a previous state. In addition, InnoDB tables recover well from crashes. MySQL will analyze the log files to ensure the data is accurate so there is no need to repair tables.





Row-level locking InnoDB uses row-level rather than table-level locking. If a row is being inserted, updated or deleted, only changes to the same row are held up until that request has completed.



в myisam перевести из таблицу innodb


Tables that receive more updates than selects may be faster with InnoDB. No full-text search InnoDB tables do not support full-text searches; it is not easy to match one or more keywords against multiple columns. Slower performance If your application is primarily selecting data and performance is a priority, MyISAM tables will normally be faster and use fewer system resources.



в innodb перевести из myisam таблицу


Should you use InnoDB? InnoDB is the best option if you need to create a reliable data-driven web application.


This will convert every InnoDB table to MyISAM and not replicate to other servers

InnoDB is certainly the best choice for online shops, financial applications or any project where data integrity is essential. Defining tables is more complex, but your application will be more robust and may require less server-side code.

Note that you can mix table types within the same database.



Перевести таблицу из innodb в myisam видеоматериалы




In practice, it may cause less developer confusion if you stick with a single table type.






Комментарии пользователей

буквально удивили и порадовали Никогда не поверил бы, что даже таковое бывает
27.08.2018 03:59
Извиняюсь, ничем не могу помочь, но уверен, что Вам помогут найти правильное решение. Не отчаивайтесь.
05.09.2018 03:11
Ставлю пять!
13.09.2018 19:45
а вот вопросик можно? У вас время после поста указано. Это московское? Заранее спасибо!
16.09.2018 03:18

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