Which of the following products was the first to implement true relational algebra in a PC DBMS? dBase-II IDMS R:base Oracle TRUE ANSWER : ? YOUR ANSWER : ?
With respect to data input, the most accurate description of batch control is comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system All of these controlling the input of each input clerk dividing documents to be entered into batches None of these TRUE ANSWER : ? YOUR ANSWER : ?
When you have finished entering information into a form the contents of the form are written to the data file the template is written to the data file the contents of the form can be printed All of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
A tuple is a(n): key of a table. column of a table. row of a table. two dimensional table. TRUE ANSWER : ? YOUR ANSWER : ?
A subtype entity is a special case of another entity called a supertype entity. False True TRUE ANSWER : ? YOUR ANSWER : ?
A database management system allows simultaneous access to multiple files None of the listed here Both of the listed here can do more than a record management system TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not considered to be a basic element of an enterprise-class database system? COBOL programs DBMS Users Database applications TRUE ANSWER : ? YOUR ANSWER : ?
A file that is organized in uniform format is formally referred to as a _____ or a database file. Database Document Structured data file Record None of these TRUE ANSWER : ? YOUR ANSWER : ?
The distinguishable parts of a record are called database data fields None of these files TRUE ANSWER : ? YOUR ANSWER : ?