Data Models into Database Designs A foreign key is: All of these used to define null status. a column containing the primary key of another table. used to define data types. All of these used to define null status. a column containing the primary key of another table. used to define data types. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible types of actions are there when enforcing minimum cardinalities? Two Four Six Three Two Four Six Three ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Surrogate keys have much meaning for users. True False True False ANSWER DOWNLOAD EXAMIANS APP
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 A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n): surrogate key. foreign key. primary key. composite key. surrogate key. foreign key. primary key. composite key. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following columns is(are) are required in a table? An alternate key A primary key A foreign key A surrogate key An alternate key A primary key A foreign key A surrogate key ANSWER DOWNLOAD EXAMIANS APP
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