November 2008
Intermediate to advanced
592 pages
20h 13m
English
Content preview from Introduction to Database Systems
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CHAPTER 9
INTRODUCTION TO TRANSACTION PROCESSING
After reading this chapter, the reader will understand:
- The four desirable properties of a transaction, which include atomicity, concurrency, isolation, and durability
- The various states that a transaction passes through during its execution
- Why the transactions are executed concurrently
- Anomalies due to interleaved execution of transactions
- The various possible schedules of executing transactions
- The concept of serializable schedules
- Different ways of defining schedule equivalence, which include result equivalence, conflict equivalence, and view equivalence
- Use of precedence graph in testing schedules for conflict serializability
- The recoverable and cascadeless schedules
- SQL transaction statements ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.