Sql Server统计表中某年某月某个值有多少？
比如：统计表AA中YWLX列在某年某月每种类型各有多少? select year(AA_YWRQ) as YEARS, month(AA_YWRQ) AS Months ,AA_YWLX,count(AA_YWLX) as Number from AA group by year(AA_YWRQ), month(AA_YWRQ),AA_YWLX 表中数据： 查询后的结果：
比如：统计表AA中YWLX列在某年某月每种类型各有多少?
select
year(AA_YWRQ) as YEARS,
month(AA_YWRQ) AS Months ,AA_YWLX,count(AA_YWLX) as Number
from AA
group by year(AA_YWRQ),
month(AA_YWRQ),AA_YWLX
表中数据：
查询后的结果：
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