Question: QUESTION 4 A table cell contains an value if there is only a single non-repeating item. QUESTION 5 _keys are used only within the database

QUESTION 4 A table cell contains an value if there is

QUESTION 4 A table cell contains an value if there is only a single non-repeating item. QUESTION 5 _keys are used only within the database and are often hidden so users do not even know they exist

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