Question

Please look the following query:

SELECT ID, START, END FROM TABLEA

the result is:

ID       START                      END
1        2012-06-07 19:32:00        2012-06-08 06:00:00
2        2012-06-08 06:00:00        NULL

But I want really a result like this:

START                      END
2012-06-07 19:32:00        2012-06-07 23:59:59
2012-06-08 00:00:00        NULL

The id no matters.

And look at this example:

 ID       START                      END
    1        2012-06-06 19:32:00        2012-06-08 06:00:00
    2        2012-06-08 06:00:00        NULL

It Must be:

        START                      END
        2012-06-06 19:32:00        2012-06-06 23:59:59
        2012-06-07 00:00:00        2012-06-07 23:59:59
        2012-06-08 00:00:00        NULL

The idea is to generate rows with the start and end values within the same day.

Thanks in advance.

Answer 1

 with       cte
      AS ( SELECT   MIN(START) AS MinStart ,
                    MAX(START) AS MaxStart
           FROM     TableA
           UNION ALL
           SELECT   DATEADD(DAY, 1, MinStart) ,
                    MaxStart
           FROM     cte
           WHERE    DATEADD(DAY, 1, MinStart) BETWEEN MinStart AND MaxStart
         )
SELECT  MinStart AS START ,
        DATEADD(millisecond, -3, FLOOR(CAST(MinStart AS FLOAT)) + 1) AS [End]
FROM    cte