Data Models into Database Designs A foreign key is used to implement relationships between tables. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs In a 1:1 relationship, the foreign key is placed in: either the parent table or the child table. the parent table. the child table. either table without specifying parent and child tables. either the parent table or the child table. the parent table. the child table. either table without specifying parent and child tables. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs An ideal primary key is short, numeric and seldom changing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following columns is(are) are required in a table? A foreign key A primary key A surrogate key An alternate key A foreign key A primary key A surrogate key An alternate key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n): primary key. foreign key. surrogate key. composite key. primary key. foreign key. surrogate key. composite key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible sets of minimum cardinalities are there? Six Three Two Four Six Three Two Four ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS