167. AQA A Level SLR23 Transaction processing
About this video
AQA Specification Reference
A Level 4.10.5
In this video we take a look at transaction processing, record locking and redundancy and the rules of A.C.I.D. (Atomicity, Consistency, Isolation and Durability).
Key questions:
- What do we mean by the term referential integrity?
- What are the primary considerations regarding transaction processing?
00:00 Transaction processing
00:14 Intro
00:19 Multi-user databases
01:15 Data integrity and referential integrity
04:41 Transaction processing
06:24 Key questions
06:37 Going beyond the specification
06:45 ACID rules
07:08 Atomicity
07:41 Consistency
08:06 Isolation
08:40 Durability
09:08 Outro
Last updated: 06.11.25
