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摘要: select to_char(trunc(add_months(sysdate,-1),'mm'),'yyyymmdd') first_day,to_char(last_day(add_months(sysdate,-1)),'yyyymmdd') last_day from dual; oracl 阅读全文
posted @ 2020-05-13 15:19 秋风飒飒吹 阅读(8691) 评论(0) 推荐(0)