PostgreSQL_CE
PGCES-02 · Question #132
PGCES-02 Question #132: Real Exam Question with Answer & Explanation
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Question
Based on the relationship of columns within a table, select the most suitable description that shows that column A is dependent on column B.
Options
- AThe value in column B is uniquely determined when a value in column A is selected.
- BThe value in column A is uniquely determined when a value in column B is selected.
- CWhen the value in column A is changed, the corresponding value in column B also must be
- DWhen the value in column B is changed, the corresponding value of column A also must be
- EAs long as column B exists, the amount of information will not decrease even if column A is
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