Physical Database Design Which of the following are integrity controls that a DBMS may support? Limit the use of null values in some fields. All of these Assume a default value in a field unless a user enters a value for that field. Limit the set of permissible values that a field may assume. Limit the use of null values in some fields. All of these Assume a default value in a field unless a user enters a value for that field. Limit the set of permissible values that a field may assume. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A field represents each component of a composite attribute. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design If a denormalization situation exists with a one-to-one binary relationship, which of the following is true? All fields are stored in three relations. All fields are stored in four relations. All fields are stored in one relation. All fields are stored in two relations. All fields are stored in three relations. All fields are stored in four relations. All fields are stored in one relation. All fields are stored in two relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is an advantage of partitioning? Complexity Inconsistent access speed Security Extra space Complexity Inconsistent access speed Security Extra space ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following improves a query's processing time? Write complex queries. Query one query within another. Use compatible data types. Combine a table with itself. Write complex queries. Query one query within another. Use compatible data types. Combine a table with itself. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Distributing the columns of a table into several separate physical records is known as horizontal partitioning. False True False True ANSWER DOWNLOAD EXAMIANS APP
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