Introduction to Database System Which of the following is true of a network structure? It is conceptually simple It allows a many-to-many relationship It will be the dominant data base of the future It is a physical representation of the data It is conceptually simple It allows a many-to-many relationship It will be the dominant data base of the future It is a physical representation of the data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table ALTER TABLE INSERT COLUMN MODIFY TABLE ADD COLUMN ALTER TABLE INSERT COLUMN MODIFY TABLE ADD COLUMN ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A top-to-bottom relationship among the items in a database is established by a Hierarchical schema Relational schema Network schema All of the listed here Hierarchical schema Relational schema Network schema All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Supertype entity Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these controlling the input of each input clerk All of these dividing documents to be entered into batches comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these controlling the input of each input clerk All of these dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file can be best described as an orderly collection of data items None of these a general collection of data items a random collection of data items a single data item an orderly collection of data items None of these a general collection of data items a random collection of data items a single data item ANSWER DOWNLOAD EXAMIANS APP
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