System Analysis and Design
The systems conversion technique of totally removing the existing system and immediately implementing the new system is called as

parallel run
pilot conversion
None of these
phased conversion
crash conversion

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System Analysis and Design
Data Definition Language (DDL)

all of the listed here
specifies for the DBMS what is required; the techniques used to process data
describes how data are structured in the data base
determine how data must be structured to produce the user's view

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