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 Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity? ID-independent entity Strong entity ID-dependent entity Weak entity ID-independent entity Strong entity ID-dependent entity Weak entity 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 A recursive relationship is a relationship between an entity and ________ . an archetype entity a subtype entity itself an instance entity an archetype entity a subtype entity itself an instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In an enterprise-class database system, business users interact directly with database applications, which directly access the database data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL? DEFINE TABLE MODIFY TABLE All of the listed here ALTER TABLE DEFINE TABLE MODIFY TABLE All of the listed here ALTER TABLE ANSWER DOWNLOAD EXAMIANS APP
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