Oracle,查询表的创建时间和最后修改时间sql

SELECT * FROM USER_TABLES 查看当前用户下的表
SELECT * FROM DBA_TABLES 查看数据库中所有的表
SELECT CREATED,LAST_DDL_TIME from user_objects where object_name=upper('表名')

SELECT CREATED, LAST_DDL_TIME

FROM USER_OBJECTS
WHERE OBJECT_NAME = 'PDCA_NEW_REPAIR';