摘要: 1. 日期和字符转换函数用法(to_date,to_char) select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') as nowTime from dual; //日期转化为字符串 select to_char(sysdate,'yyyy') as now 阅读全文
posted @ 2019-11-15 11:23 千年佬妖 阅读(25722) 评论(0) 推荐(0) 编辑