Introduction to Database System A subtype entity is a special case of another entity called a supertype entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa. One-to-many relationship Many-to-one relationship None of these Many-to-many relationship One-to-one relationship One-to-many relationship Many-to-one relationship None of these Many-to-many relationship One-to-one relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a data item record field data base data item record field data base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the widths of all fields in all files None of these the data types of all fields in all files the names of all fields in all files All of these the widths of all fields in all files None of these the data types of all fields in all files the names of all fields in all files All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to changes data in a table? APPEND BROWSE INSERT UPDATE APPEND BROWSE INSERT UPDATE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: transitive dependencies. referential integrity constraints. modification anomalies. normal forms. transitive dependencies. referential integrity constraints. modification anomalies. normal forms. ANSWER DOWNLOAD EXAMIANS APP
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