MySql Query Count_Working_Days

pravingate07 · #1 (**permalink**) 02-07-12, 06:11

I have Emp table with following values

Code:

Emp_Id  Emp_Name    Subject        Dates
001      Smith      Java         07-02-2012
001      Smith      oracle       08-02-2012
001      smith      C++          10-02-2012
002      john       java         01-01-2012
002      john       SE           10-01-2012
002      john       c            10-01-2012  
001      smith      physics      04-01-2012
001      smith      c#           07-02-2012
001      smith     javascript    07-02-2012

Now as we can see here smith studied only 3 days for month February and 1 for month Jan while john studied only 2 days for month January.

How can we calculate this count for any employee? As a e.g:Output should be in following way.

Code:

Emp_Id   Emp_Name  Month_Year   No_Of_Days_Studied_In_Month
001      smith      Feb12                 3
001      smith      Jan12                 1
002      john       Jan12                 2

r937 · #2 (**permalink**) 02-07-12, 07:02

you want COUNT(DISTINCT emp.date), not COUNT(emp.date)

pravingate07 · #3 (**permalink**) 02-08-12, 01:30

yes, its working....

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