Define the terms: Serializable and Conflict Serializable. Determine whether the following schedule A is serializable and conflict serializable or not?
Schedule A:
| T1 | T2 |
| read (X) |
|
|
| write (X) |
| write (Y) |
|
|
| read (Y) |
| commit |
|
|
| commit |
Serializable and Conflict Serializable are two different concepts used in database transactions and concurrency control.
Serializable: A schedule is Serializable if it produces the same results as its transactions executed in some serial order. A serial order is a sequence of transaction operations where operations from a transaction appear in the order they were originally issued. Serializable schedules ensure that the integrity of the database is preserved even when multiple transactions are __________ _____ _____ _________ ______ _______ _________.
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