Introduction to Database System What is the language used by most of the DBMSs for helping their users to access data? SQL 4GL High level language Query language SQL 4GL High level language Query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System After you _____ a record, many data management the environments require you to issue a command to save the changes you made. Sort key Update Delete Index Sort key Update Delete Index ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system can be accessed only by data processing professionals can accept English language commands allows non-programmers to access information stored in a database None of these both (a) and (b) can be accessed only by data processing professionals can accept English language commands allows non-programmers to access information stored in a database None of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have no records with the same value in the common field they have a row in common both (b) and (c) None of these they have a field in common they have no records with the same value in the common field they have a row in common both (b) and (c) None of these they have a field in common ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): identifier. attribute. entity. relationship. identifier. attribute. entity. relationship. ANSWER DOWNLOAD EXAMIANS APP
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