If it does,
What does "if it does" refer to?
Now, in the interest of reducing resource contention ..., real-world systems typically do allow the construction of transactions that are not two-phase.... However, it should be clear that such transactions are a risky proposition; at best, allowing a given transaction A not to be two-phase amounts to a gamble that no interfering transaction B will ever coexist in the system with A (for if it does, then the system overall has the potential to produce wrong answers)
Introduction to Database Systems, J. Date
Top answer
Tara2 for if it does, = because if any interfering transaction B coexists in the system with A, CJ
- Tara2 for if it does, = because if any interfering transaction B coexists in the system with A, CJ
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Tara2for if it does,
= because if any interfering transaction B coexists in the system with A,
CJ
0Now, in the interest of reducing resource contention ..., real-world systems typically do allow the construction of transactions that are not two-phase.... However, it should be clear that such transactions are a risky proposition; at best, allowing a given transaction A not to be two-phase amounts to a gamble that no interfering transaction B will ever coexist in the system with A (for
0
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