问题:
A . The default internal storage of dates is in the numeric format
B . The default internal storage of dates is in the character format
C . The RR date format automatically calculates the century from the SYSDATE function and does not allow the user to enter the century
D . The RR date format automatically calculates the century from the SYSDATE function but allows the user to enter the century if required
● 参考解析
本题暂无解析