Introduction to Database System The only reason for the existence of relations is to store instances of functional dependencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type may be related to more than one record of another record type. Many-to many relationship Many-to-one relationship One-to-many relationship One-to-one relationship Many-to many relationship Many-to-one relationship One-to-many relationship One-to-one relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An identifier typically uses more than one attribute. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What is the language used by most of the DBMSs for helping their users to access data? Query language SQL 4GL High level language Query language SQL 4GL High level language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a row. can only be one column. identifies a column. must always be composed of two or more columns. identifies a row. can only be one column. identifies a column. must always be composed of two or more columns. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a on demand report exception report regularly scheduled report forecasting report on demand report exception report regularly scheduled report forecasting report ANSWER DOWNLOAD EXAMIANS APP
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