I have a table which have two column say Column1 and Column2. Column1 comprises of Key and Column2 comprises of Values.
I have to display all key-value pair along with key-group sum.
Currently I am ordering the values by Column1 and calculating sum for each key in view using a local variable.
Can this be merged in a single SQL query.
Please see below image for further diagrammatic view.
Yiou can use union all ordered
select column1 , column2
from my_table
union all
select concat(column1, ' - Sub Total') as column1, sum(column2)
from my_table
group by column1
order by column1
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