A database transaction is a way to ‘link’ multiple queries together as if they were executed
as a single unit. This allows queries that need to succeed as a group to either all succeed or all
Using transactions has the following steps:
Signify the start of a transaction.
Run the queries comprising the transaction ‘unit’.
If ALL queries are successful, commit ALL of the query results.
If an error occurs in ANY query, rollback the results of ALL queries that were part of the
Web Application Development
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.