Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Databases Modifying Data with SQL Handling Errors When Manipulating Data Introduction to Transactions

Doesn't the process of "commiting" take time?

I don't really understand how disabling Autocommit prevents problems from occurring as a result of unintended interruption. Doesn't the process of writing to disk take time so it's still possible that an interruption can corrupt the process of writing to disk?

1 Answer

Steven Parker
Steven Parker
217,570 Points

The kind of "interruption" mentioned here is probably between statement entries.

In the case of commit, all the statements have been entered, so an interruption of the statement entry sequence (or the client-server connection) would not affect the completion of the process, even it it requires a bit of I/O time.