A.系统会自动产生UPDATED表来存放更改前的数据
B.系统会自动产生UPDATED表来存放更改后的数据
C.系统会自动产生INSERTED表和DELETED表,用INSERTED表存放更改后的数据,用DELETED表存放更改前的数据
D.系统会自动产生INSERTED表和DELETED表,用INSERTED表存放更改前的数据,用DELETED表存放更改后的数据
Which of the following statement is correct?( )
A.The definition phases results in the Software Requirements Specification
B.Testing is optional in software life cycle
C.CASE tools can only aid in the design phase of a software lifecycle
D.A change during a later phase does not require the documentation of all Earlier phases to be updated
Which of the following statements is true?( )
A.The definition phase results in the Software Requirement Specification
B.Festing is optional in software life cycle
C.CASE tools can only aid in the design phase of a soft ware life cycle
D.A change during a later phase doesn’t require the document of all earlier phases to be updated