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 NUMBER CHAR LONG VARCHAR2 NUMBER CHAR ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The blocking factor is: attributes grouped together by the same secondary key. a group of fields stored in adjacent memory. attributes grouped together by the same primary key. the number of physical records per page. attributes grouped together by the same secondary key. a group of fields stored in adjacent memory. attributes grouped together by the same primary key. the number of physical records per page. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Distributing the columns of a table into several separate physical records is known as horizontal partitioning. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following improves a query's processing time? Use compatible data types. Write complex queries. Query one query within another. Combine a table with itself. Use compatible data types. Write complex queries. Query one query within another. Combine a table with itself. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Hashing algorithm converts a primary key value into a record address. False True False True ANSWER DOWNLOAD EXAMIANS APP
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