摘要: --Group by State_ts "per X minutes"select to_char(state_ts, 'hh24')||':'||floor(to_char(state_ts, 'mi')/15)*15 tm, report_type, count(report_type)from 阅读全文
posted @ 2019-04-23 11:05 CathyGao2018 阅读(1170) 评论(0) 推荐(0) 编辑