ocp 11g認證題庫詳解：1Z0-051-080題
最新學訊：近期OCP認證正在報名中，因考試人員較多請盡快報名獲取最近考試時間，報名費用請聯系在線老師，甲骨文官方認證，報名從速！
我要咨詢ocp 11g認證題庫詳解：1Z0-051-080題，完整題庫請點擊這里聯系老師咨詢了解
80. Which two statements are true regarding working with dates? (Choose two.)
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.
Answer: AD
試題解析：
AB,默認內部日期的存儲形式是數字形式,所有A對，B錯。
A參照Database Concepts的DATE Data Type部分：
The database stores dates internally as numbers. Dates are stored in fixed-length fields of 7 bytes each, corresponding to century, year, month, day, hour, minute, and second
CD,RR日期格式自動從SYSDATE函數中計算出世紀，但是如果需要還允許用戶輸入世紀,所有C錯，D對。
