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select c, case when lower(substr(c, -1, 1)) = substr(c, -1, 1) then 1 else 0 end as f from ( select '1223B' as c from dual union all select '123C' from dual union all select '028409d' from dual union all select 'abce' from dual union all select 'ABCf' from dual ) x
C
F
1223B
0
123C
0
028409d
1
abce
1
ABCf
1