TheUNDO_RETENTIONparameterinyourdatabaseissetto1000andundoretentionisnotguaranteed.Whichstatementregardingretentionofundodataiscorrect?()

A.Undodatabecomesobsoleteafter1,000seconds. B.Undodatagetsrefreshedafterevery1,000seconds. C.Undodatawillbestoredpermanentlyafter1,000seconds. D.Committedundodatawouldberetainedfor1,000secondsiffreeundospaceisavailable. E.UndodatawillberetainedintheUNDOtablespacefor1,000seconds,thenitgetsmovedtotheTEMPORARYtablespacetoprovidereadconsistency.

时间:2023-08-25 17:40:49

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