Top "Innodb" questions

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

Defining Composite Key with Auto Increment in MySQL

Scenario: I have a table which references two foreign keys, and for each unique combination of these foreign keys, has …

mysql innodb auto-increment composite-key
How to clean or resize the ibtmp1 file in MySQL?

MySQL 5.7 introduces a new file ibtmp1 for storing temporary data in InnoDB to increase the performance. But I have noted …

mysql database innodb mysql-5.7
Correct exception handling with python MySQLdb connection

I created a small/basic python script to insert data into a MySQL database. I included some error handling - …

python error-handling innodb mysql-python
Warning: A long semaphore wait

For the past 4 days I have had massive problems with my nightly updates, except for 1 night were it all went …

mysql sql innodb alter-table full-text-indexing
InnoDB tables exist in MySQL but says they do not exist after copying database to new server

I used mysqldump to export my database and then I imported it into MySQL on my other server. I can …

mysql innodb mysqldump mysql-error-1146 my.cnf
#1033 - Incorrect information in file: './database_name/table_name.frm'

I'm completely lost as to how or why this error is displaying when I go to browse the table data. …

php mysql phpmyadmin innodb myisam
Why does MySQL autoincrement increase on failed inserts?

A co-worker just made me aware of a very strange MySQL behavior. Assuming you have a table with an auto_…

mysql innodb auto-increment
MySQL Error 1118 (Row size too large) when restoring Django-mailer database

I dumped a working production database from a django app and am trying to migrate it to my local development …

mysql django innodb django-mailer
What is the InnoDB equivalent of MyISAM's key_buffer_size?

When using MyISAM the configuration setting key_buffer_size defines the size of the global buffer where MySQL caches frequently …

mysql performance innodb myisam
MySQL - How to ORDER BY RELEVANCE? INNODB Table

I've got about 20,000 rows in an INNODB table called 'cards', so FULLTEXT is not an option. Please consider this table: …

mysql search sql-order-by innodb relevance