Introduction to Database System An entity is something that can be identified in the user's work environment; something that the users want to track. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a record data base data item field record data base data item field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove an index from the database in SQL? REMOVE INDEX ROLL BACK INDEX DROP INDEX DELETE INDEX REMOVE INDEX ROLL BACK INDEX DROP INDEX DELETE INDEX 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? Supertype entity Instance entity Subtype entity Archetype entity Supertype entity Instance entity Subtype entity Archetype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a logical data-base structure? tree network chain relational tree network chain relational ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to redefine a column of the table in SQL ? DEFINE TABLE MODIFY TABLE ALTER TABLE all of the listed here DEFINE TABLE MODIFY TABLE ALTER TABLE all of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS