Physical Database Design Some advantages of partitioning include: efficiency, security, and load balancing. False True False True ANSWER DOWNLOAD EXAMIANS APP
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? LONG CHAR VARCHAR2 NUMBER LONG CHAR VARCHAR2 NUMBER ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A rule of thumb for choosing indexes for a relational database includes which of the following? Be careful indexing attributes that have null values. Indexes are more useful on smaller tables. Do not specify a unique index for the primary key of each table. 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. Indexes are more useful on smaller tables. Do not specify a unique index for the primary key of each table. Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Sequential retrieval on a primary key for sequential file storage has which of the following features? Slow Impractical Very fast Moderately fast Slow Impractical Very fast Moderately fast ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design A multidimensional database model is used most often in which of the following models? Relational Hierarchical Network Data warehouse Relational Hierarchical Network Data warehouse ANSWER DOWNLOAD EXAMIANS APP
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