Question

我想在两个不同的表上计算两列，名称相同。一列包含行example: AB0000，第二列（从第二个表）包含行：B0000。我需要将 A 放在第二列的所有行中。我在这里做错了什么？

SELECT [Column_A] 
from
 Table_A  
where
(
Select Count([Column_A]) from Table_A a
where [TIME_DATE_From_Column_A] BETWEEN '2014-06-30 00:00:00' and '2014-07-07 00:00:00'
) 
(
SELECT  'A'+[Column_B] 
from Table_B  b
)

先谢谢。

Answer 1

这是你在找什么？

select column_a, count(*) as a,
       (select count(*)
        from table_b b
        where b.column_a = 'A' + column_b
       ) b
from Table_A  a
where [TIME_DATE_From_Column_A] between '2014-06-30 00:00:00' and '2014-07-07 00:00:00'
group by column_a;

计数2个表+字符串

1 个答案: