I have a table - table1 like below:
+------+--------+--------+-----+
ID---hours1---hours2-----hours3--+
1-------4-------3---------2----+
2-------8-------7---------6----+
1-------5-------2---------1----+
2-------10------11--------2----+
Expected Results:
ID-----Total
1--------17
2--------44
I tried SELF join query as below:
SELECT ID, SUM(hours1 + hours2 + hours3)
from table1 a inner join table1 b ON a.Id = b.Id
group by a.Id
However this is giving incorrect results and results are very weird. Can anyone please help me what's wrong in above query?
I don't think the self-join is required for this, just:
select t.id, sum(t.hours1+t.hours2+t.hours3) as total
from table1 t
group by t.id
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