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Oracle OCP 19c 认证1Z0-082考试题库(第4题)

Oracle OCP 19c 认证1Z0-082考试题库(第4题)-CUUG整理

4.Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI:SS? (Choose two.)

A. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds

B. SYSDATE can be queried only from the DUAL table

C. CURRENT_DATE returns the current date and time as per the session time zone

D. SYSDATE can be used in expressions only if the default date format is DD-MON-RR

E. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server

F. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE

posted @ 2021-02-22 09:35  cnblogs_5359  阅读(443)  评论(0编辑  收藏  举报