Qid-1
Que-what is capital of india ?
A- mumbai
B- delhi
C-kolkata
D-chennai
Ans-B

Qid-2
Que-formula of water ?
A- h2O
B- h30
C-h40
D-h50
Ans-A

Que                                ans
what is capital of india ?         Delhi
Formula of water ?                 H20

SELECT que, decode(ans, 'A', a, 'B', b, 'C', c, 'D', d, 'No answer') FROM question