Data Models into Database Designs In 1:N relationships, which entity becomes the parent entity is arbitrary. True False True False 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. True False True False 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 If a relationship has a cascade updates constraint, then if ________ in the parent table is changed, then the same change will automatically be made to any corresponding foreign key value. any alternate key a foreign key a surrogate key the primary key any alternate key a foreign key a surrogate key the primary key 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 constraints Null status Default value Data type Data constraints Null status Default value Data type ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs Which constraint requires that the binary relationship indicate all combinations that must appear in the ternary relationship? None of these Both of the above MUST NOT MUST COVER None of these Both of the above MUST NOT MUST COVER ANSWER DOWNLOAD EXAMIANS APP
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