Database Systems Certification Exam Tests
Database Systems Practice Test 120
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The MCQ Quiz Abstraction level that describes complex low-level data structures in detail, is: view level, physical level, virtual level and logical level with "View of Data" App APK Download (Free) for associates in computer science. Study introduction to dbms questions and answers, Apple Book to download free sample for free online classes.
MCQ 596: The abstraction level that describes complex low-level data structures in detail, is
MCQ 597: The third level of abstraction, that simplifies the user interaction to the system is
MCQ 598: An index on an attribute of a relation is a data structure that allows database system to find tuples in relation that have specified value for attribute
MCQ 599: The expression r -s represents a
MCQ 600: Declarative DMLS requires a user to specify what data are needed and
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