数据库时区
SELECT DBTIMEZONE FROM DUAL;
SELECT SESSIONTIMEZONE FROM DUAL;
SELECT SYSTIMESTAMP FORM DUAL;
SELECT CURRENT_TIMESTAMP FROM DUAL;
数据库时区
SELECT DBTIMEZONE FROM DUAL;
SELECT SESSIONTIMEZONE FROM DUAL;
SELECT SYSTIMESTAMP FORM DUAL;
SELECT CURRENT_TIMESTAMP FROM DUAL;