Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? Many-to-Many Relationship One-to-One Relationship One-to-Many Relationship Composite Relationship Many-to-Many Relationship One-to-One Relationship One-to-Many Relationship Composite Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command is used to remove an index from the database in SQL? DELETE INDEX DROP INDEX ROLL BACK INDEX REMOVE INDEX DELETE INDEX DROP INDEX ROLL BACK INDEX REMOVE INDEX ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The data-base environment has all of the following components except: data-base administrator separate files None of these users data base data-base administrator separate files None of these users data base ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to changes data in a table? INSERT BROWSE UPDATE APPEND INSERT BROWSE UPDATE APPEND ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Any table that meets the definition of a relation is said to be in first normal form. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Weak entity ID- independent entity Strong entity ID-dependent entity Weak entity ID- independent entity Strong entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
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