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 NUMBER CHAR VARCHAR2 LONG NUMBER CHAR VARCHAR2 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 three relations. All fields are stored in one relation. All fields are stored in two relations. All fields are stored in four relations. All fields are stored in three relations. All fields are stored in one relation. All fields are stored in two relations. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A pointer is a detailed coding scheme recognized by system software for representing organizational data. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: attributes grouped together by the same secondary key. the number of physical records per page. a group of fields stored in adjacent memory. attributes grouped together by the same primary key. attributes grouped together by the same secondary key. the number of physical records per page. a group of fields stored in adjacent memory. attributes grouped together by the same primary key. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Some advantages of partitioning include: efficiency, security, and load balancing. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? All of these Maximize storage space Represent most values Improve data integrity All of these Maximize storage space Represent most values Improve data integrity ANSWER DOWNLOAD EXAMIANS APP
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