Data Models into Database Designs Which of the following columns is(are) are required in a table? A surrogate key A primary key An alternate key A foreign key A surrogate key A primary key An alternate key A foreign 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 type Data constraints Null status Default value Data type Data constraints Null status Default value ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs The identifier of an entity will become the ________ of the new table. foreign key identity key main attribute primary key foreign key identity key main attribute primary key ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, there are six possible referential integrity actions. True False True False ANSWER DOWNLOAD EXAMIANS APP
Data Models into Database Designs For every relationship, how many possible sets of minimum cardinalities are there? Four Six Two Three Four Six Two Three 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
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