I want output of sql Query and i already done some query part but it fails - sql

Question

The query which i have written
SELECT Date_current,
COUNT(*) as'Total'
FROM Call_Register
WHERE (DATEDIFF(dd,'02/1/2014',Date_current) >=0)
AND (DATEDIFF(dd,'02/12/2014',Date_current) <=0)
GROUP BY Date_current
HAVING COUNT(*)>=(convert(int,'02/12/2014')) \
ORDER BY Date_current
But this query gives me error:
Conversion failed when converting the varchar value '02/12/2014' to data type int.
Date Total
---------- -------
Feb 3 2014 2:58PM 10
Feb 4 2014 2:59PM 10
Please Help me
getting Output like
Date Total
---------- -------
Feb 3 2014 2:58PM 1
Feb 3 2014 2:59PM 1
Feb 3 2014 3:00PM 1
Feb 3 2014 3:08PM 1
Feb 3 2014 3:20PM 1
Feb 3 2014 4:05PM 1
Feb 3 2014 4:17PM 1
Feb 3 2014 4:19PM 1
Feb 3 2014 4:21PM 1
Feb 3 2014 4:24PM 1
Feb 4 2014 1:11PM 1
Feb 4 2014 2:35PM 1
Feb 4 2014 2:37PM 1
Feb 4 2014 5:19PM 1

Answer 1

Firstly, you should either use the culture invariant date format yyyyMMdd, or explicitly set the date format using SET DATEFORMAT DMY, or prepare to get inconsistent results.
Secondly, the following is potentially very inefficient:
WHERE (DATEDIFF(dd,'02/1/2014',Date_current) >=0)
AND (DATEDIFF(dd,'02/12/2014',Date_current) <=0)
If you have an index on Date_Current it will not be used because you are performing a function on it. You should instead use:
WHERE Date_Current >= '20140102'
AND Date_Current <= '20141202'
You then have a sargable query. I have had to guess at whether '02/1/2014' meant 1st February 2014, or 2nd January 2014 as it is not clear (hence the importance of my first point).
Finally (this part has already been answered but including it for completeness as I couldn't not point out the first two errors) you cannot convert to int here:
convert(int,'02/12/2014')
You presumably need to convert to date time first:
CONVERT(INT, CONVERT(DATETIME, '20141202'))
Although I suspect this is still not what you want, you are just filtering the days to those that have 41973 records or more, seems like a fairly arbitrary filter....

Answer 2

You need to Cast your String Date after that only you can proceed with Int CAST
CAST('02/12/2014' AS Datetime)
Try this
SELECT Date_current,COUNT(*) AS 'Total'
From Call_Register
WHERE (DATEDIFF(dd,'02/1/2014',Date_current)>=0) AND
(DATEDIFF(dd,'02/12/2014',Date_current)<=0)
Group By Date_current
having COUNT(*)>=(convert(int, CAST('02/12/2014' AS Datetime)) order By Date_current

Answer 3

At last got the as for my question thnx everyone
SELECT cast(Date_current as DATE),COUNT(*) AS 'Total'
From Call_Register
WHERE (DATEDIFF(dd,'02/1/2014',Date_current)>=0) AND
(DATEDIFF(dd,'02/13/2014',Date_current)<=0)
Group By cast(Date_current as DATE)
can i use order by in this cos i want it in descending order pl help for that