extract 从日期中截取部分日期
2018-07-05 16:36 bsdbqling 阅读(293) 评论(0) 编辑 收藏 举报SQL> select extract (year from sysdate) year, extract (month from sysdate) month, extract (day from sysdate) day from dual;
YEAR MONTH DAY
---------- ---------- ----------
2018 5 4