Question: Databases systems minimizes data: a Integrity b. Independence c. Breaches d. Redundancy e. Inequality Which of the following is the correct order of the data
Databases systems minimizes data: a Integrity b. Independence c. Breaches d. Redundancy e. Inequality Which of the following is the correct order of the data hierarchy, from smallest to largest? a. bit, byte, field, file, record, database b. bit, byte, field, record, file, database c. byte, bit, field, record, file, database d. byte, bit, field, file, record, database e. bit, field, record, byte, file, database A _____ is a set of programs that provide users with tools to add, delete, access, modify, and analyze data stored in a _____ a. Website, file b. Database, file c. Information system, database d. Database management system, database e. File management system, database A key to design a functional database is a data: a. File b. Entity c. System d. Model e. Hierarchy Which of the next statements about the Relational Database Model is NOT true? a. It is based on the concept of two-dimensional tables b. It increases data integrity c. Data are stored in a flat-file d. Contains records and attributes e. It prevents data isolation Customer is the _____ in Customer File and the _____ in the Order File. a. primary key, foreign key b. primary key, identifier c. entity, attribute d. secondary key, identifier e secondary key, primary key A _____ relationship exist when an association is maintained within a single entity. a Binary b. Complex c. Unary d. Connective e Closed In a relational database, each row represents a(n) _____ and each column represents a(n) _____ a. Instance, attribute b. Entity, attribute c. Field, record d. Property, identifier e. Record entity The entity-relationship diagram uses the _____ symbol to represent the cardinality of a relationship. a. Circle b. Arrow c. Diamond d. Square
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