SELECT
case when abitmap=0 then '零'
when abitmap=1 then '壹'
else '贰'
end as bitmap
from userinfo
记得别忘了END
select aaa.aName
, sum( case aaa.aMonth when 1 then aaa.aProductSum end ) as '一月'
, sum( case aaa.aMonth when 2 then aaa.aProductSum end ) as '二月'
, sum( case aaa.aMonth when 3 then aaa.aProductSum end ) as '三月'
, sum( case aaa.aMonth when 4 then aaa.aProductSum end ) as '四月'
, sum( case aaa.aMonth when 5 then aaa.aProductSum end ) as '五月'
, sum( case aaa.aMonth when 6 then aaa.aProductSum end ) as '六月'
, sum( case aaa.aMonth when 7 then aaa.aProductSum end ) as '七月'
from aaa
GROUP BY aaa.aName
相当于Excel里的数据透视表 功能