Slide 1CM20145 Recovery + Intro. to Concurrency Dr Alwyn Barry Dr Joanna Bryson Slide 2 Last Time… Transaction Concepts ACID Possible States Schedules Serializability Conflict…
Slide 1 Slide 2 Slide 3 Databases might get lost We don’t like that, because … Solutions are based on logging techniques General term: write ahead logging…
1. prepared by Visakh V,Assistant Professor,LBSITW 2. A transaction is a unit ofprogram execution thataccesses and possiblyupdates various data itemsprepared by Visakh V,Assistant…
Slide 11 Integrity Ioan Despi Transactions: transaction concept, transaction state implementation of atomicity and durability concurrent executions serializability, recoverability…
Slide 1 Chs. 15, 16, 17: Transactions, Conc. Control and Recovery Transaction Concept Transaction State Implementation of Atomicity and Durability Concurrent…