MySQL GROUP By count

Question

ID| FROM |  TO   |     Type    |
--|------|-------|-------------|
1 | Brij |Nilesh |   Call_In   |
--|------|-------|-------------|
2 |Jaydip| Vipul |   Call_In   |
         


        

Answer 1

Try

Select 
  `FROM`, `TO`, 
  COUNT(*) AS howmany,
  SUM(CASE Type WHEN 'Call_In' THEN 1 ELSE 0 END) AS Call_In,
  SUM(CASE Type WHEN 'Call_Out' THEN 1 ELSE 0 END) AS Call_Out
from table GROUP BY `FROM`, `TO`

Answer 2

Here you go:

Select FROM, TO, COUNT(*) AS howmany,
  sum(case when type = 'Call_In' then 1 else 0 end) as Call_In,
  sum(case when type = 'Call_Out' then 1 else 0 end) as Call_Out
from table 
GROUP BY FROM,TO

Answer 3

Thanks for your comments i got it i just added count of types of calls so i can add it to futher use

Answer 4

SELECT FROM, TO, COUNT(*) AS howmany,
       SUM(Type = 'Call_In') AS Call_In, SUM(Type = 'Call_Out') AS Call_Out
FROM table
GROUP BY FROM, TO