Top "Innodb" questions

InnoDB is an ACID-compliant transactional storage engine for MySQL that uses MultiVersion Concurrency Control (MVCC).

How do I quickly rename a MySQL database (change schema name)?

The MySQL manual at MySQL covers this. Usually I just dump the database and reimport it with a new name. …

mysql database innodb rename
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes

Per the MySQL docs, there are four TEXT types: TINYTEXT TEXT MEDIUMTEXT LONGTEXT What is the maximum length that I …

mysql innodb
How to shrink/purge ibdata1 file in MySQL

I am using MySQL in localhost as a "query tool" for performing statistics in R, that is, everytime I run …

mysql database innodb
How do I see all foreign keys to a table or column?

In MySQL, how do I get a list of all foreign key constraints pointing to a particular table? a particular …

mysql foreign-keys innodb
How to debug Lock wait timeout exceeded on MySQL?

In my production error logs I occasionally see: SQLSTATE[HY000]: General error: 1205 Lock wait timeout exceeded; try restarting transaction I …

mysql debugging transactions innodb acid
MySQL DROP all tables, ignoring foreign keys

Is there a nice easy way to drop all tables from a MySQL database, ignoring any foreign key constraints that …

mysql foreign-keys innodb sql-drop
How can I check MySQL engine type for a specific table?

My MySQL database contains several tables using different storage engines (specifically myisam and innodb). How can I find out which …

mysql innodb myisam
MyISAM versus InnoDB

I'm working on a projects which involves a lot of database writes, I'd say (70% inserts and 30% reads). This ratio would …

mysql database performance innodb myisam
What's the difference between MyISAM and InnoDB?

I understand that this question has been asked before, but most of the time it is asked in relation to …

mysql database innodb myisam
How to convert all tables from MyISAM into InnoDB?

I know I can issue an alter table individually to change the table storage from MyISAM to InnoDB. I am …

mysql sql innodb