How does a database transaction work?

Development Database

dmitrii_fediuk (Dmitrii Fediuk) January 27, 2016, 7:57pm 2

See also:

Naming inconsistency: an identically named method addCommitCallback() is called BEFORE a commit in the \Magento\Framework\DB\Transaction class, but AFTER a commit in the \Magento\Framework\Model\ResourceModel\AbstractResource class.
How to fix the «DDL statements are not allowed in transactions» failure.