A subschema is a view of the database used by one or more systems or users.
Answer the following statement true (T) or false (F)
True
Rationale: A subschema is a view of the database used by one or more systems or users.
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Constructor functions cannot be called recursively.
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?Which of the following is true of transformations in three dimensions?
A. ?Positive values along the axes are to the right, down, and away from a reader. B. ?Positive values along the axes are to the left, up, and away from a reader. C. ?Negative values along the axes are to the right, down, and toward a reader. D. ?Negative values along the axes are to the left, up, and away from a reader.
A database schema (dictionary) defines the name, data type, and length of each field in the database.
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A series of horizontal and vertical gridlines superimposed on the preview window is called a reconstruction.
Answer the following statement true (T) or false (F)