Physical Database Design What is the best data type definition for Oracle when a field is alphanumeric and has a fixed length? NUMBER CHAR LONG VARCHAR2 NUMBER CHAR LONG VARCHAR2 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Denormalization and clustering can work well to minimize data access time for small records. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following improves a query's processing time? Combine a table with itself. Query one query within another. Use compatible data types. Write complex queries. Combine a table with itself. Query one query within another. Use compatible data types. Write complex queries. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design The fastest read/write time and most efficient data storage of any disk array type is: RAID-2 RAID-0 RAID-3 RAID-1 RAID-2 RAID-0 RAID-3 RAID-1 ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? All of these Improve data integrity Maximize storage space Represent most values All of these Improve data integrity Maximize storage space Represent most values 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
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