MSSQL Select Distinct 合并最后一列

Question

My database output looks as follows:

2016-02-03 Ticket1 4.25
2016-02-04 Ticket2 .25
2016-02-04 Ticket2 1.00
2016-02-05 Ticket3 .75

How can I run make the query select Distinct so im not seeing duplicate from column1 and column2 but combine the last row so the output would look like:

2016-02-03 Ticket1 4.25
2016-02-04 Ticket2 1.25
2016-02-05 Ticket3 .75

Answer 1

Use SUM with GROUP BY .

Query

SELECT column1, column2, SUM(column3) as column3
FROM your_table_name
GROUP BY column1, column2;