Physical Database Design Which of the following improves a query's processing time? Query one query within another. Write complex queries. Combine a table with itself. Use compatible data types. Query one query within another. Write complex queries. Combine a table with itself. Use compatible data types. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following is an advantage of partitioning? Security Inconsistent access speed Extra space Complexity Security Inconsistent access speed Extra space Complexity 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 A secondary key is which of the following? Nonunique key Determines the tablespace required Primary key Useful for denormalization decisions Nonunique key Determines the tablespace required Primary key Useful for denormalization decisions 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
Physical Database Design An extent is a contiguous section of disk storage space. True False True False ANSWER DOWNLOAD EXAMIANS APP
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