Physical Database Design An extent is a contiguous section of disk storage space. 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
Physical Database Design Selecting a data type involves which of the following? Improve data integrity Represent most values Maximize storage space All of these Improve data integrity Represent most values Maximize storage space All of these ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Two basic constructs to link one piece of data with another piece of data: sequential storage and pointers. True False True False ANSWER DOWNLOAD EXAMIANS APP
Physical Database Design Which of the following are integrity controls that a DBMS may support? Limit the set of permissible values that a field may assume. All of these Limit the use of null values in some fields. Assume a default value in a field unless a user enters a value for that field. Limit the set of permissible values that a field may assume. All of these Limit the use of null values in some fields. Assume a default value in a field unless a user enters a value for that field. ANSWER DOWNLOAD EXAMIANS APP
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 CHAR NUMBER VARCHAR2 LONG CHAR NUMBER VARCHAR2 ANSWER DOWNLOAD EXAMIANS APP
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