System Analysis and Design
Data manipulation language (DML)

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

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System Analysis and Design
Unit testing is

running the system with line data by the actual user
None of these
testing changes made in an existing or a new program
is checking the logic of one or more programs in the candidate system
making sure that the new programs do in fact process certain transactions according to Specifications

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System Analysis and Design
Inverted list organization

means storing records in contiguous blocks according to a key.
has records placed randomly throughout the file
Stores records sequentially but uses an index to locate records
uses an index for each key type
None of these

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