About Course
Learn how database transactions keep data consistent when several changes must succeed or fail together. Covers BEGIN, COMMIT and ROLLBACK, savepoints, the ACID properties, autocommit behaviour and an introduction to isolation levels, with PostgreSQL as the worked example.
Tutwoo is an independent learning provider. This course is general training based on official database documentation. It is not produced or endorsed by any database vendor and is not an accredited qualification.
© 2026 Tutwoo UK Limited. This course was created in-house by Tutwoo and is our original work. It is for your own learning only: please do not copy, share, record or resell it.
Course Content
Course Lessons
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Why transactions matter: all or nothing
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Safer data changes: checking before you commit and using savepoints
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Concurrency and isolation levels
Sources & Further Reading
Final Assessment
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