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
Data Models into Database Designs A foreign key is: All of these used to define null status. used to define data types. a column containing the primary key of another table. All of these used to define null status. used to define data types. a column containing the primary key of another table. 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. surrogate key. composite key. foreign key. primary key. surrogate key. composite key. foreign key. 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 child table. either table without specifying parent and child tables. the parent table. either the parent table or the child table. the child table. either table without specifying parent and child tables. the parent table. 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 Three Four Six Two Three Four Six ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which of the following data constraints would be used to specify that the value of cells in a column must be one of a specific set of possible values? A range constraint An intrarelation constraint A domain constraint An interrelation constraint A range constraint An intrarelation constraint A domain constraint An interrelation constraint ANSWER DOWNLOAD EXAMIANS APP
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