select name, sal,
case when sal >= 4000 then 'Good'
when sal <= 2000 then 'Bad'
else 'Ok'
end as Status
from tablename
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select name, sal,
case when sal >= 4000 then 'Good'
when sal <= 2000 then 'Bad'
else 'Ok'
end as Status
from tablename
相关文章：