Physical Database Design Which of the following is not a factor to consider when switching from small to large block size? The length of all of the fields in a table row Random row access speed The number of columns Block contention The length of all of the fields in a table row Random row access speed The number of columns Block contention 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 What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length? LONG CHAR VARCHAR2 NUMBER LONG CHAR VARCHAR2 NUMBER 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 one relation. All fields are stored in three relations. All fields are stored in four relations. All fields are stored in two relations. All fields are stored in one relation. All fields are stored in three relations. All fields are stored in four relations. All fields are stored in two relations. 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 Selecting a data type involves which of the following? All of these Improve data integrity Represent most values Maximize storage space All of these Improve data integrity Represent most values Maximize storage space ANSWER DOWNLOAD EXAMIANS APP
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