Data Models into Database Designs In a 1:1 relationship, the foreign key is placed in: the child table. either the parent table or the child table. either table without specifying parent and child tables. the parent table. the child table. either the parent table or the child table. either table without specifying parent and child tables. the parent table. ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited. False True False True 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 column properties specifies whether or not cells in a column must contain a data value? Data type Default value Data constraints Null status Data type Default value Data constraints Null status ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs A foreign key is: a column containing the primary key of another table. All of these used to define data types. used to define null status. a column containing the primary key of another table. All of these used to define data types. used to define null status. 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
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