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(Transaction Management) Make a solution to handle two transactions where the initial BalanceX is 1,000,000, if: Transaction Ta reads balanceX at time t1, reduces balanceX by 100,000 at time t2, writes balanceX at time t3, and performs rollback at time t5 Transaction Tb reads balanceX at time t4, reduces balanceX by 50,000 at time t5, writes balanceX at time t6, and commits it at time t7

(Transaction Management) Make a solution to handle two transactions where the initial BalanceX is 1,000,000, if: Transaction Ta reads balanceX at time t1, reduces balanceX by 100,000 at time t2, writes balanceX at time t3, and performs rollback at time t5 Transaction Tb reads balanceX at time t4, reduces balanceX by 50,000 at time t5, writes balanceX at time t6, and commits it at time t7

Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
11th Edition
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Chapter10: Transaction Management And Concurrency Control
Section: Chapter Questions
Problem 15RQ
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Database Systems

(Transaction Management) Make a solution to handle two transactions where the initial BalanceX is 1,000,000, if:

  1. Transaction Ta reads balanceX at time t1, reduces balanceX by 100,000 at time t2, writes balanceX at time t3, and performs rollback at time t5
  2. Transaction Tb reads balanceX at time t4, reduces balanceX by 50,000 at time t5, writes balanceX at time t6, and commits it at time t7
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