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Oracleで増分値を30分としてdatetime値を増分する方法は? mssql では、問題を解決するために次のクエリを使用しました。Oracle で同等のクエリが必要です。

 with mycte as(
       select cast('2012-01-01 00:00:00' as datetime) DateValue union all 
       select dateadd(minute,30,DateValue) from mycte where  dateadd(minute,30,DateValue) <= '2012-01-01 23:59:00')
 select DateValue from  mycte option (maxrecursion 32767);

上記のクエリの結果は次のとおりです。

DateValue
2012-01-01 00:00:00.000
2012-01-01 00:30:00.000
2012-01-01 01:00:00.000
2012-01-01 01:30:00.000
2012-01-01 02:00:00.000
2012-01-01 02:30:00.000
2012-01-01 03:00:00.000
2012-01-01 03:30:00.000
2012-01-01 04:00:00.000
2012-01-01 04:30:00.000
2012-01-01 05:00:00.000
2012-01-01 05:30:00.000
2012-01-01 06:00:00.000
2012-01-01 06:30:00.000
2012-01-01 07:00:00.000
2012-01-01 07:30:00.000
2012-01-01 08:00:00.000
2012-01-01 08:30:00.000
2012-01-01 09:00:00.000
2012-01-01 09:30:00.000
2012-01-01 10:00:00.000
2012-01-01 10:30:00.000
2012-01-01 11:00:00.000
2012-01-01 11:30:00.000
2012-01-01 12:00:00.000
2012-01-01 12:30:00.000
2012-01-01 13:00:00.000
2012-01-01 13:30:00.000
2012-01-01 14:00:00.000
2012-01-01 14:30:00.000
2012-01-01 15:00:00.000
2012-01-01 15:30:00.000
2012-01-01 16:00:00.000
2012-01-01 16:30:00.000
2012-01-01 17:00:00.000
2012-01-01 17:30:00.000
2012-01-01 18:00:00.000
2012-01-01 18:30:00.000
2012-01-01 19:00:00.000
2012-01-01 19:30:00.000
2012-01-01 20:00:00.000
2012-01-01 20:30:00.000
2012-01-01 21:00:00.000
2012-01-01 21:30:00.000
2012-01-01 22:00:00.000
2012-01-01 22:30:00.000
2012-01-01 23:00:00.000
2012-01-01 23:30:00.000

オラクルで同等のクエリが必要です,,

4

2 に答える 2

2 
with mycte as (
    select timestamp '2012-01-01 00:00:00' + interval '30' minute * level as DateValue 
    from dual 
    connect by level < 48
)
select *
from mycte;
于 2012-07-04T07:21:39.603 に答える
1

別の方法が考えられます

select to_date('2012-01-01', 'yyyy-mm-dd') + (level-1)/48 as datetime 
  from dual
connect by level <= 48
于 2012-07-04T07:23:36.817 に答える