Question

I have a table that contains a DateField(DataType : DateTime) and TimeField(DataType : Float)
My output should be DateTime . My tables are in SQL Server 2008

Here is an example :

Table A

ID  StartDate                            StartTime
1   2012-06-08 00:00:00.000              1223
2   2012-08-07 00:00:00.000              910
3   2012-05-02 00:00:00.000              1614
4   0094-07-13 00:00:00.000              1245
5   1994-04-18 00.00:00.000              2573

I need to get my output in such a way that I should it should validate for the correct time and correct date and append these two and insert into table B

Table B :

ID    StartDateTime
1     2012-06-06 12:23:00.000
2     2012-08-07 09:10:00.000
3     2012-05-02 16:14:00.000

Note that I intentionally left rows 4 and 5 out of the result set; these rows should be ignored because they don’t contain valid datetime or time data.

Answer 1

Have you considered correcting the design, and storing the date/time together, or at least storing date and time using the proper data types? In the meantime:

SELECT StartDate + STUFF(RIGHT('0' + RTRIM(StartTime), 4), 3, 0, ':') 
  FROM dbo.table
  WHERE ISDATE(StartDate) = 1 AND CONVERT(INT, StartTime) < 2400

  -- wow what a bunch of absolute garbage data you have
  -- what Government agency are you paying to provide this data?

  AND CONVERT(INT, StartTime) % 100 BETWEEN 0 AND 59;