[单选题]You are the administrator of two SQL Server 2000 computers. One of these servers contains a 4-GB database named marketing. You want to remove the marketing database from one server and add it to the other as quickly as possible.What should you do?

正确答案 ：A

Detach the database from the original server by using the sp_detach_db stored procedure. Copy the database and the transaction log files to the new server, and attach them by using the sp_attach_db stored procedure.

解析：解析：Explanation:Detachingandattachingdatabasesissometimesausefultechniqueforquicklymovingadatabasefromonecomputertoanother.Tomoveadatabase,ordatabasefile,toanotherserverordiskthedatabasemustfirstbedetachedfromtheoriginalserverordisk;movedtotheotherserverordiskandthenattachedontheserverordisk.Inadditionthenewlocationofthemovedfile(s)mustbespecified.Thesp_detach_dbstoredprocedureisusedtodetachthedatabaseandcanrunUPDATESTATISTICSonalltablesbeforedetachingthedatabasewhilethesp_attach_dbstoredprocedureisusedtoattachthedatabaseinitsnewlocation.IncorrectAnswers:B:DTScanimportdatafromatextfileorfromanOLEDBdatasourcesuchasaMicrosoftAccess2000databaseintoSQLServer.ItcanalsoexportdatafromSQLServertoanOLEDBdatadestination.Itprovidesforhigh-speeddataloadingfromtextfilesintoSQLServertables.However,itisnotthefastestwaytomoveawholedatabasefromoneservertoanother.C:Beforeadatabasecanberestoredfromabackuptoanewlocation;thedatabasemustfirstberecreatedinthedestinationasthebackupholdsonlythedatafilesthatbelonginthevarioustables.Itdoesnotholdthetabledefinitions.Thisisnotthefastestmethodtomoveadatabase.D:TheDISKINITandDISKREFITcommandscannotbeusedtomoveadatabasefromoneservertoanother.Note:DISKINITandDISKREINITarefeaturesthatareusedinaSQLServer6.x.inSQLServer6.x,DISKINITisusedtocreatedatabaseortransactionlogdevicestostorethespecifieddatabaseortransactionlogwhenDISKINITfollowedeitheraCREATEDATABASEorALTERDATABASEstatementwhileDISKREINITisusedtorestoredeviceentriestoappropriatesystemtableswhenthedeviceentrywasmissingfromsysdevices.InSQLServer2000theCREATEDATABASEandALTERDATABASEstatementsallowforthecreationofseparatedataandlogfiles.BothCREATEDATABASEandALTERDATABASEcreateoperatingsystemfilesanddatabasesinasinglestep.ItisthusrecommendedthatallreferencestoDISKINITshouldberemovedinSQLServer2000andreplacedwithreferencestoeitherCREATEDATABASEorALTERDATABASE.

[单选题]You are the administrator of a SQL Server 2000 computer. The server contains a database that stores financial data. You want to use Data Transformation Services packages to import numeric data from other SQL server computers. The precision and scale values of this data are not defined consistently on the other servers.You want to prevent any loss of data during the import operations. What should you do?

正确答案 ：B

Use the ALTER COLUMN clause of the ALTER TABLE statement to change data types in the destination tables. Change the data types to reflect the highest precision and scale values involved in data transfer.

解析：解析：Explanation: The ALTER COLUMN clause of the ALTER TABLE statement can be used to change the definition of a column and can be used to alter the precision and scale values of the data types. The destination precision should be changed so no data would be lost. The transformation to a data type with higher precision is automatic and would not require any coding.

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