Database Systems MCQs (Computer Science) From Textbook
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Database Systems MCQs – Mock Test 120
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The MCQ: The abstraction level that describes complex low-level data structures in detail, is; "View of Data" App (Free Android & iOS) with answers: view level, physical level, logical level, and virtual level for online bachelor's degree computer science. Practice Introduction to DBMS Questions and Answers, Google eBook to download free chapter for online college courses.
The abstraction level that describes complex low-level data structures in detail, is
The third level of abstraction, that simplifies the user interaction to the system is
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
The expression r -s represents a
Declarative DMLS requires a user to specify what data are needed and
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