SQL HELP… CONVERT(int, CONVERT(datetime, FLOOR(CON

Question

I am having a problem adjusting this part of my SQL statement:

HAVING dbo.BOOKINGS.BOOKED = CONVERT(int, CONVERT(datetime, 
                                                  FLOOR(CONVERT(float, GETDATE()))) + 2)

Normally, the page that uses this statement just lists the amount of sales for today, I want to switch the GETDATE() to a date that I declare. I tried all different formats and none have worked

Answer 1

if you want you to give your own date you could do this instead of getdate() which gives current system timestamp.

Cast('2010-11-04 13:28:00.000' as datetime)

Answer 2

How about

declare @myDate as datetime
set @myDate = '11/2/2010'

. . .

HAVING dbo.BOOKINGS.BOOKED = CONVERT(int, CONVERT(datetime, 
                                                  FLOOR(CONVERT(float, @myDate ))) + 2)

That should do it, and it should automatically do the type conversion on your date string used in the set statement, or you could just pass in a datetime parameter if this is in a stored procedure.

Answer 3

Use the DATEADD/DATEDIFF method of setting the time portion to midnight of the current date - it's the fastest means, and casting to FLOAT can be unreliable:

HAVING BOOKINGS.dbo.BOOKED = CONVERT(INT, DATEADD(dd, DATEDIFF(dd, 0, GETDATE()), 0))+2

Then, you can set your own date easily if you use a variable (@var in this example, within a stored procedure or function):

DECLARE @var DATETIME

SELECT ...
HAVING BOOKINGS.dbo.BOOKED = CONVERT(INT, DATEADD(dd, DATEDIFF(dd, 0, @var), 0))+2

This assumes @var is a DATETIME data type. Otherwise, you'll need to use a date format SQL Server will implicitly convert to a DATETIME -- or use CAST/CONVERT to explicitly convert the value.