Introduction to Database System The primary key is selected from the: composite keys. determinants. foreign keys. candidate keys. composite keys. determinants. foreign keys. candidate keys. 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 a compound key consisting of the first name and the last name All of these None of these the pin code the last name a compound key consisting of the first name and the last name All of these None of these the pin code the last name ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Database applications are seldom intended for use by a single user. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Each of data files has a _____ that describe the way the data is stored in the file. File structure Records Database Fields File structure Records Database Fields ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System What is the language used by most of the DBMSs for helping their users to access data? High level language SQL 4GL Query language High level language SQL 4GL Query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add new rows to a table? APPEND ALTER TABLE ADD ROW INSERT APPEND ALTER TABLE ADD ROW INSERT ANSWER DOWNLOAD EXAMIANS APP
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