Physical Database Design The primary goal of physical database design is data processing efficiency. False True False True 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? VARCHAR2 CHAR LONG NUMBER VARCHAR2 CHAR LONG NUMBER ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A rule of thumb for choosing indexes for a relational database includes which of the following? Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. Be careful indexing attributes that have null values. Do not specify a unique index for the primary key of each table. Indexes are more useful on smaller tables. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. Be careful indexing attributes that have null values. Do not specify a unique index for the primary key of each table. Indexes are more useful on smaller tables. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Some advantages of partitioning include: efficiency, security, and load balancing. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Hashing algorithm converts a primary key value into a record address. True False True False 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
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