Physical Database Design Two basic constructs to link one piece of data with another piece of data: sequential storage and pointers. False True False True 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. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? Improve data integrity Maximize storage space All of these Represent most values Improve data integrity Maximize storage space All of these Represent most values 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 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 one relation. All fields are stored in three relations. All fields are stored in two relations. All fields are stored in four relations. All fields are stored in one relation. All fields are stored in three relations. All fields are stored in two relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A secondary key is which of the following? Nonunique key Primary key Determines the tablespace required Useful for denormalization decisions Nonunique key Primary key Determines the tablespace required Useful for denormalization decisions ANSWER DOWNLOAD EXAMIANS APP
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