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 ?
On last week's softening of prices in the world market, it will be positive news for oil import-dependent market like the Philippines given the series of rollbacks that its consumers will have to enjoy in next week's driving juncture.
Its outrageous to see the Trump Administration rewarding elitist right-wing think tanks by granting their energy efficiency rollback petitions.
Tom Carper and other Democrats pointed especially to the EPA's moves under Wheeler easing a series of environmental measures governing the coal industry, including rollbacks that coal giant Bob Murray, a former lobbying client of Wheeler, had sought from the Trump administration.
The two cited the five consecutive price cuts by oil companiesas among the reasons for seeking a rollback. They also cited the assessment of experts that the trend will continue until next year.
Regulations in at least 46 areas related to the environment--from allowing mining on federal lands to weakening protections for plant and animal life under the Endangered Species Act--have been enacted or proposed since Trump took office in 2017, according to Harvard Law School's Environmental Regulation Rollback Tracker.
For example, there are already reports that consumer activists, encouraged by the court's ruling that the mandated rollback of rates to 20 percent below 1987 levels is constitutional, are flexing their muscles in other states, most notably in Illinois where proposed legislation to roll back rates by 15 percent is currently before the Legislature.
Another official said the government could also go in for a rollback of the VAT on diesel, which would be costlier by Rs 2.37 per litre from April.
In both cases, a build-up of ice on the FOHE restricted the flow of fuel to the engine, resulting in the engine rollback.
He explained to his colleagues that price freezes and rollbacks would not work.
The combination of Norton, Abraham and Whitman in key positions is likely to mean that environmentalists will spend the next four years fighting a rear-guard action against regulatory rollbacks and struggling to gather congressional support against bad policies, including proposed oil drilling in the pristine Arctic National Wildlife Refuge (ANWR).
For example, higher inaccuracies in predictions lead AVNMP to make a greater number of rollbacks, resulting in a smaller look-ahead into the future.
* Formal rollbacks may not be critical or necessary to address taxpayer problems: In 11 cases, "the APA process facilitated a settlement of back years, though the methodology was not rolled back."