InnoDB and MYISAM, are the store engines of mysql, this two is used for locking concept where InnoDB locks the particular row in the table, and MyIsam locks the entire table in the mysql, You can specify the type by giving MYISAM OR INNODB while creating a table in db.
http://stackoverflow.com/questions/3818759/what-is-innodb-and-myisam-in-mysql
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