how use sumfor this table

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I am getting sum from this table

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id         type           num
220         2             10
220         2             10   
220         2             10
119         5             20     
119         5             20
117         1             9    
117         1             9
225         2             6 
225         2             6
227         2             1
228         2             4

I am using this query:

SQL

select (sum(num))as dd from table1 where  type=2

result of this query is dd=47
but this wrong I want this result dd=21

In other words, DISTINCT id
i want this result
dd
21

Posted 3-Oct-14 1:12am

saeed1364

Updated 3-Oct-14 1:37am

v3

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Comments

George Jonsson 3-Oct-14 7:21am

Have you tried using SELECT DISTINCT ?

3 solutions

Solution 1

SQL

select (sum(num))as dd from table1 where  type=2 group by id

Posted 3-Oct-14 1:31am

CPallini

Comments

saeed1364 3-Oct-14 7:35am

i want result only sum
by group by get multi record in table

[no name] 3-Oct-14 13:00pm

This answer looks pretty correct. What do you complain?

CPallini 3-Oct-14 7:44am

Sorry?

Solution 3

Please try like this:-

SELECT SUM(DISTINCT(num)) as dd from table1 where type=2

Follow this SQLfiddle[^]
Hope this helps
Thanks
:)

Posted 3-Oct-14 8:20am

Suraj Sahoo | Coding Passion

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jaket-cp · Accepted Answer · 2014-10-03T06:18:00

You could try something like this:

SQL

--setup data
declare @table1 as table (pk int identity(1,1),id int,type int,num int);
insert into @table1 values(220,2,10);
insert into @table1 values(220,2,10);
insert into @table1 values(220,2,10);
insert into @table1 values(119,5,20);
insert into @table1 values(119,5,20);
insert into @table1 values(117,1,9);
insert into @table1 values(117,1,9);
insert into @table1 values(225,2,6);
insert into @table1 values(225,2,6);
insert into @table1 values(227,2,1);
insert into @table1 values(228,2,4);

--sum query
select (sum(num))as dd from
    (select distinct id, type, num  from @table1) table1
where type = 2;

In this example all 3 fields id, type and num are required to be distinct.