select a.code , a.name , b.code , b.name
from a,b
where a.code = b.code(+)
union
select a.code , a.name , b.code , b.name
from a,b
where a.code(+) = b.code
from a,b
where a.code = b.code(+)
union
select a.code , a.name , b.code , b.name
from a,b
where a.code(+) = b.code
解决方案 »
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