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Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer?.

Solutions for Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE). Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.

Here you can find the meaning of Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Consider the following log sequence of two transactions on a bank account, with initial balance 12000, which transfer 2000 to a mortage payment and then, apply a 5% interest. T1 start T1 B old 12000 new = 10000 T1 M old = 0 new = 2000 T1 commit T2 start T2 B old = 10000 new = 10500 T2 commitSuppose the database system crashed just before log record 7 is written. When the system is restarted, which of the following statements is true of the recovery procedure?a)We can apply redo and undo operations in arbitrary order because they are idempotent.b)We need not redo log records 2 and 3 because transaction T1 has committed.c)We must undo log records 6 to set B to 10000 and then redo log records 2 and 3.d)We must redo log records 6 set B to 10000.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.