Introduction to Database System In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction? PACK COMMIT ZIP SAVE PACK COMMIT ZIP SAVE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in an indexed file None of these a sequential file a hashed file a tree file an indexed file None of these a sequential file a hashed file a tree file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file upgrading renewing Updating restructuring upgrading renewing Updating restructuring ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The data-base environment has all of the following components except: separate files users data base None of these data-base administrator separate files users data base None of these data-base administrator ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in this form if it is in BCNF and has no multivalued dependencies: domain/key normal form. third normal form. fourth normal form. second normal form. domain/key normal form. third normal form. fourth normal form. second normal form. ANSWER DOWNLOAD EXAMIANS APP
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