Contando duplicados de la tabla

I have got a table which i have mentioned below, i need to get a total results avoiding duplicates , can any one provide any assistance or suggestions on how to get the results mentioned below, thankyu

ID      name    Total   Used
24     John     5        2
24     John     10       6
27     Peter    20       0
27     Peter    20       5

Result should be something like this 

ID      name    Total   Used
24     John     15       8
27     Peter    40       5

preguntado el 29 de agosto de 12 a las 13:08

6 Respuestas

Looks like you just need to use SUM() on the two columns. Also use a GROUP BY on the id and name

SELECT id, name, sum(total) All_total, sum(used) All_used
FROM yourtable
GROUP BY id, name

ver Violín SQL con demostración

La GROUP BY field must include any other columns you are selecting which are not in an aggregate function, so for the example you would include both id y name en la GROUP BY.

Edit #1 your query would be:

SELECT [ID] , name, sum([Total]), sum([Used]), [GUID] 
FROM [table].[dbo].[vw_data] 
GROUP BY [ID], [name], [GUID]

respondido 08 nov., 12:21

tried the above query but getting this error: Column...is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause - Mr A

@MrA are you adding any additional fields, if so then you will need to include them in the GROUP BY - Taryn

@MrA - Please don't cut bits out of error messages. What does the whole error say? And are you running exactly the same query or have you modified it? - MatBailie

@MrA The columns in the select list, which are not using any aggregate function must be present in the group by clause, Add all of your columns in the Group By clause who are not using Sum or any function. - Waqar Janjuá

still getting error , thats my final query: SELECT [ID] ,sum[name] ,sum[Total] ,[Used] ,[GUID] FROM [table].[dbo].[vw_data] GROUP BY [ID] , [name] , [GUID] - Mr A 

select sum(Total), sum(Used), ID, name
from table
group by ID, name;

Respondido 29 ago 12, 13:08

select ID,      name,   sum( Total,),  sum( Used)
from  table 
group by Id,name;

Respondido 29 ago 12, 13:08

Prueba esto:

select id,name, sum(Total),sum(used)
from tab
group by id,name

Respondido 29 ago 12, 13:08

SELECT id, name, sum(total) total, sum(used) used  from table GROUP BY id, name

Respondido 29 ago 12, 13:08

MySql syntax for this problem:

CREATE TABLE DUPLICATE (ID,NAME, TOTAL, USED);

INSERT INTO DUPLICATE VALUES(24,'John',5,2);
INSERT INTO DUPLICATE VALUES(24,'John',10,6);
INSERT INTO DUPLICATE VALUES(27,'Peter',20,0);
INSERT INTO DUPLICATE VALUES(27,'Peter',20,5);

SELECT ID, NAME, SUM(TOTAL), SUM(USED) FROM DUPLICATE GROUP BY ID, NAME;

Respondido 29 ago 12, 13:08

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