Introduction to Database System In the relational model, relationships between relations or tables are created by using: foreign keys. candidate keys. determinants. composite keys. foreign keys. candidate keys. determinants. composite keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add new rows to a table? ADD ROW ALTER TABLE APPEND INSERT ADD ROW ALTER TABLE APPEND INSERT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to something that can be identified in the user's work environment, something that the users want to track? Relationship Identifier Attribute Entity Relationship Identifier Attribute Entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following can many entity instances of one type be related to many entity instances of another type? Composite Relationship One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship Composite Relationship One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have a row in common None of these they have no records with the same value in the common field both (b) and (c) they have a field in common they have a row in common None of these they have no records with the same value in the common field both (b) and (c) they have a field in common ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System To have a file hold a list, it is necessary to All of the listed here identify the records in the list identify the name, width and type of the fields of each record. decide which fields will be used as sort or index keys All of the listed here identify the records in the list identify the name, width and type of the fields of each record. decide which fields will be used as sort or index keys ANSWER DOWNLOAD EXAMIANS APP
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