Database Systems Competitive Exam MCQs – Practice Test 29 (Chapter 13)
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MCQ 141: Data models provides a way to describe the design of a database at the level:
MCQ 142: The null value indicates that the value:
MCQ 143: For grouping the attributes to form various tables, there are principally:
MCQ 144: To send DML and DDL statements to the database, the statements uses an:
MCQ 145: At the higher levels of abstraction, we emphasize:
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