Introduction to Database System A data dictionary is a special file that contains the data types of all fields in all files the widths of all fields in all files All of these None of these the names of all fields in all files the data types of all fields in all files the widths of all fields in all files All of these None of these the names of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be the last name None of these the pin code a compound key consisting of the first name and the last name All of these the last name None of these the pin code a compound key consisting of the first name and the last name All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: normal forms. transitive dependencies. modification anomalies. referential integrity constraints. normal forms. transitive dependencies. modification anomalies. referential integrity constraints. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following products implemented the CODASYL DBTG model? R:base dBase-II IDMS DB2 R:base dBase-II IDMS DB2 ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file Updating upgrading renewing restructuring Updating upgrading renewing restructuring ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add new rows to a table? APPEND ADD ROW INSERT ALTER TABLE APPEND ADD ROW INSERT ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
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