在今天或者今天之前作比較: select * from JN_BUS_KJLWSBJBXX where dqsj < to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') select * from JN_BUS_KJLWSBJBXX where dqsj <= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')在今天或者今天之后作比較: select * from JN_BUS_KJLWSBJBXX where dqsj > to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') select * from JN_BUS_KJLWSBJBXX where dqsj >= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')精確時間: select * from JN_BUS_KJLWSBJBXX where dqsj = to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss')在某段時間內的比較: select * from JN_BUS_KJLWSBJBXX where dqsj between to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss') and to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') select * from JN_BUS_KJLWSBJBXX where dqsj < to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') and update > to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss') select * from JN_BUS_KJLWSBJBXX where dqsj <= to_date('2007-09-07 00:00:00','yyyy-mm-dd hh24:mi:ss') and update >= to_date('2007-07-07 00:00:00','yyyy-mm-dd hh24:mi:ss')SELECT * from ZYZB_JZ_FDMHL_ZPH where dqsj > to_date('2014-09-20','yyyy-MM-dd') --時間比較--默認時分秒為 00:00:00 SELECT * from ZYZB_JZ_FDMHL_ZPH where dqsj > to_date('2014-09-20','yyyy-mm-dd hh24:mi:ss') --時間比較 SELECT * from ZYZB_JZ_FDMHL_ZPH where dqsj > to_date('2014-09-20 23:59:59','yyyy-mm-dd hh24:mi:ss') --時間比較--精確時分秒 select * from ZYZB_JZ_FDMHL_ZPH where dqsj = to_date('2014-09-23 03:25:00','yyyy-mm-dd hh24:mi:ss')--時間比較--精確時分秒SELECT * from ZYZB_JZ_FDMHL_ZPH where to_char(dqsj,'yyyy-mm-dd') = '2014-09-23'--時間比較--精確時分秒--to_char同一時刻的日期條件(同一天,某具體時刻)select IDS , dcno , dc , allcount , gkgl , gkgl_zb , gkdl , gkdl_zb , dkgl , dkgl_zb , dkdl , dkdl_zb , hm , hm_zb , mn , mn_zb , lzym , lzym_zb , HAOMRQ , dqsj from stati_Rlgl_Pmcsrb_Zh where 1=1 and '2017-10-24' = to_char(HAOMRQ,'yyyy-mm-dd') order by dcno ASCselect IDS , dcno , dc , allcount , gkgl , gkgl_zb , gkdl , gkdl_zb , dkgl , dkgl_zb , dkdl , dkdl_zb , hm , hm_zb , mn , mn_zb , lzym , lzym_zb , HAOMRQ , dqsj from stati_Rlgl_Pmcsrb_Zh where 1=1 and HAOMRQ = to_date('2017-10-24 09:12:23','yyyy-mm-dd hh24:mi:ss') order by dcno ASC向Date類型插入自動的系統時間 ,HAOMRQ, dqsj都是Date類型的數據insert into STATI_RLGL_PMCSRB_ZH(IDS , dcno , dc , allcount , gkgl , gkgl_zb , gkdl , gkdl_zb , dkgl , dkgl_zb , dkdl , dkdl_zb , hm , hm_zb , mn , mn_zb , lzym , lzym_zb , HAOMRQ, dqsj) values(666,2,'三期',100,7,7,7,7,7,10,7,7,7,7,15,7,7,7,sysdate,sysdate);oracle語句查詢昨天的數據select IDS , dcno , dc , allcount , gkgl , gkgl_zb , gkdl , gkdl_zb , dkgl , dkgl_zb , dkdl , dkdl_zb , hm , hm_zb , mn , mn_zb , lzym , lzym_zb , HAOMRQ , dqsj from stati_Rlgl_Pmcsrb_Zh where dc = '一期' and to_char(HAOMRQ,'yyyy-MM-dd')=to_char(sysdate-1,'yyyy-MM-dd') order by dcno ASC注：其中dqsj是Y-m-d H:i:s 日期時間格式的其中我參考得到的sql語句：$time=date("Y-m-d H:i:s",time()); $sql="select * from 表名 where s_time < to_date('".$time."','yyyy-mm-dd hh24:mi:ss') and e_time > to_date('".$time."','yyyy-mm-dd hh24:mi:ss')";轉自：https://www.cnblogs.com/summary-2017/p/7263220.html

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