根据迁移过程中所需的内在心理机制的不同而进行划分，迁移可分为（）。A.正迁移和负迁移B

A. You can detach from a data pump export job and reattach later.

B. Data pump uses parallel execution server processes to implement parallel import.

C. Data pump import requires the import file to be in a directory owned by the oracle owner.

D. The master table is the last object to be exported by the data pump.

E. You can detach from a data pump import job and reattach later.

A.Both technologies guarantee an identical copy of data on the secondary node

B.Only MySQL can maintain a time-delayed copy of data on the secondary node

C.Both technologies use the TCP/IP stack as their primary transmission medium

D.DRBD uses shared-disk technology

You are developing a data contract for a Windows Communication Foundation (WCF) service. The data in the data contract must participate in round trips. Strict schema validity is not required. You need to ensure that the contract is forward-compatible and allows new data members to be added to it. Which interface should you implement in the data contract class？（）

A.ICommunicationObject

B.IExtension

C.IExtensibleObject

D.IExtensibleDataObject

When you describe the data , which kind of tense can be used Use the past tense to present the findings of an experiment while generlizations concluded from the research should use the present tense . The passive or active voice may be used , but if you are confident of the results use the active one

A．ｔｈｅ　ｐａｓｔ　ｔｅｎｓｅ

B．ｔｈｅ　ｐｒｅｓｅｎｔ　ｔｅｎｓｅ

C．ｔｈｅ　ｐｒｅｓｅｎｔ　ｐｅｒｆｅｃｔ　ｔｅｎｓｅ

D．ｔｈｅ　ｐａｓｔ　ｐｅｒｆｅｃｔ　ｔｅｎｓｅ

cation Foundation (WCF) service method named PostData. PostData is currently defined as follows:[OperationContract]void PostData(Order data);You need to modify PostData so that it can receive any SOAP message. Which code segment should you use？（）

A. [OperationContract(IsOneWay=true, Action="*", ReplyAction="*")] void PostData(Order data);

B. [OperationContract(IsOneWay=true, Action="*", ReplyAction = "*")] void PostData(BodyWriter data);

C. [OperationContract] void PostData(BodyWriter data);

D. [OperationContract] void PostData(Message data);

A、A data warehouse

B、Data mining

C、A database motherlode

D、Information mining

A、Information hiding can be used to obviate common coupling.

B、A class is an abstract data type.

C、An abstract data type is just a class.

D、Abstract data type supports both data abstraction and procedural abstraction.

A.Material Requirements Planning

B.Forecasting

C.Accounting

D.Basic Data

E.Purchasing

houses can be subdivided into (). Which store subsets of data from a warehouse.

A.OLTPs

B.transactions

C.data sarts

D.OLAPs