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? Subtype entity Instance entity Archetype entity Supertype entity Subtype entity Instance entity Archetype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, GRANT command is used to grant system privileges, roles, and object privileges to uses and roles None of the listed here allow user to access databases allow user to create databases grant system privileges, roles, and object privileges to uses and roles None of the listed here allow user to access databases allow user to create databases ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file upgrading Updating restructuring renewing upgrading Updating restructuring renewing ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Entities Primary keys Relationships Attributes Entities Primary keys Relationships Attributes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If a piece of data is stored in two places in the database, then both (a) and (b) storage space is wasted it can be more easily accessed changing the data is one spot will cause data inconsistency None of these both (a) and (b) storage space is wasted it can be more easily accessed changing the data is one spot will cause data inconsistency None of these 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. Update Index Sort key Delete Update Index Sort key Delete ANSWER DOWNLOAD EXAMIANS APP
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