Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table MODIFY TABLE ADD COLUMN INSERT COLUMN ALTER TABLE MODIFY TABLE ADD COLUMN INSERT COLUMN ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities use identifiers while tables use keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? Weak entity ID-independent entity ID-dependent entity Strong entity Weak entity ID-independent entity ID-dependent entity Strong entity 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) it can be more easily accessed None of these storage space is wasted changing the data is one spot will cause data inconsistency both (a) and (b) it can be more easily accessed None of these storage space is wasted changing the data is one spot will cause data inconsistency ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file contains several records. What does each record contain? Fields Words Database Bytes Fields Words Database Bytes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Applications are programs that interact directly with the database. True False True False ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS