Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Index Delete Update Sort key Index Delete Update Sort key ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If the record management system allows you to edit values before they are recorded on disk, you can change the name of a field All of the listed here correct spelling changes before they are recorded change the width of a field change the name of a field All of the listed here correct spelling changes before they are recorded change the width of a field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? data redundancy program dependence lack of data independence difficult to update All of these data redundancy program dependence lack of data independence difficult to update All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type is related to only one record of another record type. Many-to-one relationship None of these Many-to-many relationship One-to-many relationship One-to-one relationship Many-to-one relationship None of these Many-to-many relationship One-to-many relationship One-to-one relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in 5NF when multivalued dependencies are isolated in their own relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file restructuring Updating renewing upgrading restructuring Updating renewing upgrading ANSWER DOWNLOAD EXAMIANS APP
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