Introduction to Database System In a large DBMS each user can "see" only a small part of the entire database each subschema contains every field in the logical schema all of the listed here each user can access every sub¬schema each user can "see" only a small part of the entire database each subschema contains every field in the logical schema all of the listed here each user can access every sub¬schema ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is None of these controlling the input of each input clerk dividing documents to be entered into batches All of these comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these controlling the input of each input clerk dividing documents to be entered into batches All of these comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System 1:1, 1:N and N:M relationships are also known as HAS-A relationships. True False True False 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 a sequential file None of these a tree file an indexed file a hashed file a sequential file None of these a tree file an indexed file a hashed file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The data-base environment has all of the following components except: None of these separate files data-base administrator data base users None of these separate files data-base administrator data base users ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Relationships Entities Primary keys Attributes Relationships Entities Primary keys Attributes ANSWER DOWNLOAD EXAMIANS APP
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