Pulling Month from mixed date format

Posted on 2008-06-24
Medium Priority
Last Modified: 2012-06-21
In my database there are dates which are stored in two different formats (within the same field): MM/DD/YYYY and DD-MMM-YYYY.

I want to extract purely the months from these fields and aggregate based on the consolidated month label.

So, if these are the dates that I have:

03/20/2007 ---> Mar
04/27/2007 ---> Apr
06/03/2007 ---> Jun
1-APR-2007 ---> Apr
11-FEB-2007 ---> Feb
11-MAR-2007 ---> Mar
14-JAN-2007 ----> Jan

Question by:jimbofish8
LVL 60

Expert Comment

ID: 21856802
try this:

select datename(m, cast(yourfieldname as datetime))
from yourtablename
LVL 16

Expert Comment

ID: 21856838
SELECT count(month(columnname)) MonthCount, DATENAME(month, columnname) MonthName FROM Tablename
GROUP BY columnname
LVL 60

Expert Comment

ID: 21856847
sorry, forgot the aggregate request:

select datename(m, cast(yourfieldname as datetime)), count(*)
from yourtablename
group by datename(m, cast(yourfieldname as datetime))
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Author Comment

ID: 21857217
Nice solution. However, i need it in the shortened month form. (ie Mar  instead of March)

Accepted Solution

CoyotesIT earned 1000 total points
ID: 21857517
I would just add then,

substring(datename(m, cast(emp_dob as datetime)),1,3) [BirthMonth]
, count(emp_dob)
from employee
group by substring(datename(m, cast(emp_dob as datetime)),1,3)

Tested this on one of my DB's

Good luck!
LVL 60

Assisted Solution

chapmandew earned 1000 total points
ID: 21857634
select left(datename(m, cast(yourfieldname as datetime)), 3), count(*)
from yourtablename
group by datename(m, cast(yourfieldname as datetime))

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