System Analysis and Design
The feasibilities studied in preliminary investigation is (are):

technical feasibility
All of these
economic feasibility
None of these
operational feasibility

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System Analysis and Design
Data manipulation language (DML)

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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