Case When ...then ...else Case ....:如何实现这样的嵌套？急等
例如：
select case FieldA when '1 ' then '是 '
else Case FieldB when '1 ' then '是 '
else '否 '
end as ddd from tableA

[解决办法]
select
case FieldA
when '1 ' then '是 '
else
Case FieldB
when '1 ' then '是 '
else '否 '
end
end as ddd from tableA