mysql with 3 group by and sum

Posted by cyberfly on Stack Overflow See other posts from Stack Overflow or by cyberfly
Published on 2011-01-06T03:29:25Z Indexed on 2011/01/06 3:54 UTC
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mysql

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mysql-query

Hi all

I have this data in my table (tb_cash_transaction)

alt text

I want to group the TYPE column, CURRENCY_ID column and AMOUNT column so it will become like below:

**Currency** **Cash IN** **Cash OUT** **Balance**

14             40000        30000        10000        
15             50000        40000        10000

Rule :

1.Group by currency
2.Then find the sum of cash in for that currency
3.Find the sum of cash out for that currency
4.Get the balance (sum cash in - sum cash out)

How to achieve it using mysql? I try using group by but cannot get the desired output.

Thanks in advance

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