Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a length that can vary? CHAR VARCHAR2 NUMBER LONG CHAR VARCHAR2 NUMBER LONG ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is an advantage of partitioning? Inconsistent access speed Extra space Complexity Security Inconsistent access speed Extra space Complexity Security ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Hashing algorithm converts a primary key value into a record address. False True False True 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 If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true? All fields are stored in four relations. All fields are stored in three relations. All fields are stored in two relations. All fields are stored in one relation. All fields are stored in four relations. All fields are stored in three relations. All fields are stored in two relations. All fields are stored in one relation. 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
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