| 释义 |
rollback
roll·back R0288400 (rōl′băk′)n.1. A reduction, especially in prices or wages, to a previous lower level by governmental action or direction: a price rollback; a rollback of military supplies.2. A turning back or retreat, as from a previously held position or policy: hoped for a rollback of support for the opposition's proposed legislation.rollback (ˈrəʊlbæk) n1. a reduction in price or some other change that makes something revert to what it was before2. (Economics) a reduction in price or some other change that makes something revert to what it was before3. the process of undoing something; dismantlingroll•back (ˈroʊlˌbæk)
n. 1. an act or instance of rolling back. 2. a return to a lower level of prices, wages, etc. [1935–40] Thesaurus| Noun | 1. | rollback - the act of forcing the enemy to withdrawpush backoffence, offensive, offense - the action of attacking an enemy | | 2. | rollback - reducing prices back to some earlier levelreduction, step-down, diminution, decrease - the act of decreasing or reducing something |
Translationsreplicariduzione di prezzi impostaоткат
IdiomsSeeroll backrollback
rollback[′rōl‚bak] (chemical engineering) rerun 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 areconsidered atomic. If an error occurs while performing atransaction, the database is automatically rolled backto the state at the previous commit.
Rollback may also be performed by an explicit rollbacktransaction.rollbackA 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.rollback
Roll BackTo sell an option position and buy another with the same underlying asset and strike price, but with an earlier expiration date. One may also call this rolling backward.rollbackA retroactive claim for a higher ad valorem (property tax) rate when property is sold or put to a higher use than the one for which it was assessed.The rollback period can be as great as 10 prior years of recalculated taxes. Example: Farmer Brown owns 100 acres of land at the corner of a busy road used by almost all commuters in the area. The land is worth at least $200,000 an acre, but because of state law favorable to agricultural uses, it is appraised for tax purposes at only $10,000 an acre. Farmer Brown sells the land to Doris Developer, who is surprised when the real estate tax bill comes due
a few months later and there is a rollback for 5 years. Doris will owe 5 years of prior real estate taxes calculated on an appraised value of $200,000 per acre. In all likelihood, Farmer Brown had an innocent-sounding clause in his sales contract that said, “The parties will prorate real estate taxes as of the date of closing, except that seller shall not be responsible for any increase in taxes
as a result of the sale.” Without the clause, if they had simply agreed to pro-rate taxes (as most form contracts provide), then Farmer Brown might have to reimburse Doris Developer for over four years, worth of the taxes. rollback
Synonyms for rollbacknoun the act of forcing the enemy to withdrawSynonymsRelated Wordsnoun reducing prices back to some earlier levelRelated Words- reduction
- step-down
- diminution
- decrease
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