Physical Database Design A pointer is a detailed coding scheme recognized by system software for representing organizational data. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A secondary key is which of the following? Nonunique key Useful for denormalization decisions Determines the tablespace required Primary key Nonunique key Useful for denormalization decisions Determines the tablespace required Primary key 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? CHAR VARCHAR2 LONG NUMBER CHAR VARCHAR2 LONG NUMBER 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? The length of all of the fields in a table row Random row access speed Block contention The number of columns The length of all of the fields in a table row Random row access speed Block contention The number of columns 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 two relations. All fields are stored in three relations. All fields are stored in one relation. All fields are stored in four relations. All fields are stored in two relations. All fields are stored in three relations. All fields are stored in one relation. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Distributing the columns of a table into several separate physical records is known as horizontal partitioning. False True False True ANSWER DOWNLOAD EXAMIANS APP
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