Physical Database Design A field represents each component of a composite attribute. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The primary goal of physical database design is data processing efficiency. True False True False 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? LONG VARCHAR2 CHAR NUMBER LONG VARCHAR2 CHAR NUMBER ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design It is usually not very important to design the physical database to minimize the time required by users to interact with the information systems. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? 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. All of these ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space. True False True False ANSWER DOWNLOAD EXAMIANS APP
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