Introduction to Database System A data dictionary is a special file that contains the widths of all fields in all files the data types of all fields in all files the names of all fields in all files None of these All of these the widths of all fields in all files the data types of all fields in all files the names of all fields in all files None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A top-to-bottom relationship among the items in a database is established by a Network schema Hierarchical schema All of the listed here Relational schema Network schema Hierarchical schema All of the listed here Relational schema ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The master list of an indexed file both (b) and (c) is sorted in ascending order None of these has a number assigned to each record contains only a list of keys and record numbers both (b) and (c) is sorted in ascending order None of these has a number assigned to each record contains only a list of keys and record numbers ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In the relational model, relationships between relations or tables are created by using: candidate keys. composite keys. foreign keys. determinants. candidate keys. composite keys. foreign keys. determinants. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select data in rows and column from one or more tables? BROWSE None of these CHOOSE LIST SELECT BROWSE None of these CHOOSE LIST SELECT 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 All of these the pin code the last name a compound key consisting of the first name and the last name None of these All of these the pin code the last name a compound key consisting of the first name and the last name None of these ANSWER DOWNLOAD EXAMIANS APP
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