Physical Database Design The primary goal of physical database design is data processing efficiency. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? All of these Limit the set of permissible values that a field may assume. Limit the use of null values in some fields. Assume a default value in a field unless a user enters a value for that field. All of these Limit the set of permissible values that a field may assume. Limit the use of null values in some fields. Assume a default value in a field unless a user enters a value for that field. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length? LONG CHAR NUMBER VARCHAR2 LONG CHAR NUMBER VARCHAR2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary? NUMBER VARCHAR2 CHAR LONG NUMBER VARCHAR2 CHAR LONG ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Denormalization and clustering can work well to minimize data access time for small records. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. ANSWER DOWNLOAD EXAMIANS APP
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