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 NUMBER VARCHAR2 CHAR LONG NUMBER VARCHAR2 CHAR ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design If a denormalization situation exists with a many-to-many or associative binary relationship, which of the following is true? All fields are stored in three relations. All fields are stored in two relations. All fields are stored in four relations. All fields are stored in one relation. All fields are stored in three relations. All fields are stored in two relations. All fields are stored in four relations. All fields are stored in one relation. ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Selecting a data type involves which of the following? Represent most values Improve data integrity All of these Maximize storage space Represent most values Improve data integrity All of these Maximize storage space 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 The three newest database architectures in use today are relational, multidimensional and hierarchical. False True False True ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Sequential retrieval on a primary key for sequential file storage has which of the following features? Impractical Slow Very fast Moderately fast Impractical Slow Very fast Moderately fast ANSWER DOWNLOAD EXAMIANS APP
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