Answer / praveen hattikal

Select YEAR,SUM(q1_amt)q1_amt,SUM(q2_amt)q2_amt,SUM(q3_amt)
q3_amt,SUM(q4_amt)q4_amt from (
select YEAR,
Decode (QUARTER,'first',amount,0) as q1_amt,
Decode (QUARTER,'second',amount,0) as q2_amt,
Decode (QUARTER,'third',amount,0) as q3_amt,
Decode (QUARTER,'fourt',amount,0) as q4_amt
from table_name) group by YEAR

Answer / ankit kansal

The above answer is perfectly fine, however you can achieve the same using case

Select YEAR,SUM(q1_amt)q1_amt,SUM(q2_amt)q2_amt,SUM(q3_amt)
q3_amt,SUM(q4_amt)q4_amt from (
select YEAR,
CASE QUARTER WHEN 'first' THEN amount ELSE 0 END as q1_amt,
CASE QUARTER WHEN 'second' THEN amount ELSE 0 END as q2_amt,
CASE QUARTER WHEN 'third' THEN amount ELSE 0 END as q3_amt,
CASE QUARTER WHEN 'fourth' THEN amount ELSE 0 END as q4_amt
from t_name) temp group by YEAR;

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