System Analysis and Design
Data Definition Language (DDL)

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

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System Analysis and Design
A pseudocode is

None of these
a machine code
a computer generated random number
an easy way to communicate the logic of a program, in English¬like statements
a protocol used in data communication

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System Analysis and Design
The advantage of Purchase Option is (are)

No financing is requird. The risk of system obsolescence is shifted to the lessor
the flexibility of modifying the system at will
All of these
Insurances, maintenance, and other expenses are included in the rental charge
None of these

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