Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length? VARCHAR2 NUMBER LONG CHAR VARCHAR2 NUMBER LONG CHAR ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is not a factor to consider when switching from small to large block size? Random row access speed The length of all of the fields in a table row The number of columns Block contention Random row access speed The length of all of the fields in a table row The number of columns Block contention ANSWER DOWNLOAD EXAMIANS APP
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 is an advantage of partitioning? Complexity Security Inconsistent access speed Extra space Complexity Security Inconsistent access speed Extra space 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 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. All fields are stored in three relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: attributes grouped together by the same secondary key. attributes grouped together by the same primary key. a group of fields stored in adjacent memory. the number of physical records per page. attributes grouped together by the same secondary key. attributes grouped together by the same primary key. a group of fields stored in adjacent memory. the number of physical records per page. ANSWER DOWNLOAD EXAMIANS APP
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