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RDBMS Architecture and Introduction to ER Diagram

This Test will cover some deep relational DBMS architecture concepts and High level introduction to ER diagrams.
Q. In the relational modes, cardinality is termed as:
Q. Relational calculus is a _______?
Q. Given the basic ER and relational models, which of the following is INCORRECT?
Q. Cartesian product in relational algebra is _______?

Q. DML is provided for _______?
Q. 'AS' clause is used in SQL for _______?
Q. ODBC stands for _______?
Q. Which of the following command is used to delete a table in SQL?
Q. In a relational model, relations are termed as _______ .

Q. The database schema is written in _______ .
Q. In the architecture of a database system external level is the _______ .
Q. An entity set that does not have sufficient attributes to form a primary key is a _______ .
Q. In a Hierarchical model records are organized as _______ ?
Q. In an E-R diagram attributes are represented by _______ .
Q. In case of entity integrity, the primary key may be _______ .

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