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')
在今天或者今天之後作比較:
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')
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--預設時分秒為 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 asc
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 haomrq = to_date('2017-10-24 09:12:23','yyyy-mm-dd hh24:mi:ss') order by dcno asc
向date型別插入自動的系統時間 ,haomrq, dqsj都是date型別的資料
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語句查詢昨天的資料
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
$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')";
**：
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