Data Models into Database Designs In a 1:1 relationship, the primary key placement is arbitrary. False True False True ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required and the parent has a surrogate key, update actions can be ignored. 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 primary key A surrogate key An alternate key A foreign key A primary key A surrogate key An alternate key A foreign key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs In a 1:1 relationship, the foreign key is placed in: the child table. the parent table. either table without specifying parent and child tables. either the parent table or the child table. the child table. the parent table. either table without specifying parent and child tables. either the parent table or the child table. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When transforming an entity-relationship model into a relational database design, each entity is represented as a table. True False True False 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): composite key. surrogate key. primary key. foreign key. composite key. surrogate key. primary key. foreign key. ANSWER DOWNLOAD EXAMIANS APP
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