rollback


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rollback

[′rōl‚bak]
(chemical engineering)

rollback

(database)
Reverting data in a database to an earlier state, usually in response to an error or aborted operation.

In a transaction based database system, transactions are considered atomic. If an error occurs while performing a transaction, the database is automatically rolled back to the state at the previous commit.

Rollback may also be performed by an explicit rollback transaction.

rollback

A DBMS feature that reverses the current transaction out of the database, returning the data to its former state. A rollback is performed when processing a transaction fails at some point, and it is necessary to start over. See two-phase commit.
References in periodicals archive ?
45 per liter rollback in gasoline and diesel prices, the third consecutive oil price cut this year, Ginez said.
Today we DMK and our alliance parties protested successfully, demanding immediate rollback of imposed ticket price hike on government busses.
The $20,000 estimated savings for the average Texas homeowner from the current property tax bill is based on two unproven assumptions: That local taxes are growing 8 percent per year, the highest rate allowed before a rollback election can be called; and that if the law passes, they'll rise 5 percent per year, the new maximum.
Prior to the vote, tenant advocates were emphatic that the data presented to the board supported their request for a rollback.
The court has ruled that the determination as to whether an insurer will be exempt from effecting the rollback rests with the Department of Insurance.
BJP spokesperson Rajiv Pratap Rudy pressed for a "total rollback" and wondered whether the hike of Rs 6 per litre after the partial rollback was "acceptable" UPA allies.
Republican House members had proposed the rollback be phased in over four years, starting with a reduction from 6.
On April 2 also, parents had submitted a memorandum to the Board of Directors demanding a rollback of fee hike decision.
The rollback was expected after the Trinamool Congress chief Mamata Banerjee forced party colleague Trivedi to step down for increasing fares.
3 percent decrease in Marathon's taxable property value bumped the rollback rate up to 1.