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. One-to-one relationship Many-to-one relationship Many-to many relationship One-to-many relationship One-to-one relationship Many-to-one relationship Many-to many relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key is a group of one or more attributes that uniquely identifies a row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System All instances of an entity class have the same attributes. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A command that lets you change one or more fields in a record is Modify Look-up None of these Insert All of these Modify Look-up None of these Insert All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An indexing operation establishes an index for a file sorts file using two keys None of the listed here sorts a file using a single key establishes an index for a file sorts file using two keys None of the listed here sorts a file using a single key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
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