What is Cascading Rollback?
It is formed using two different words which are cascade and Rollback. The word cascade means, “waterfall” and rollback means, “ an act of making an action to change back to what it was before”. Due to the failure of a single transaction a cascade of transaction rollbacks. This is known as cascading rollback. For instance we can refer to the below mentioned transaction.
T1 | T2 | T3 |
---|---|---|
Read(A) | ||
Read(B) | ||
Write(A) | ||
Read(A) | ||
Write(A) | ||
Read(A) | ||
abort |
Cascading Rollback
Cascading rollback is a term that is used in DBMS. It is a concept that is explained in DBMS when we start discussing transactions.
So, let’s discuss briefly the basics that we require to know before studying cascading rollback.
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