我试图计算出两个独立的字段的总和与查询试图总结错误消息在SQL Server结果两列
select sum(percent12 + percent21) as total
from finalquery
,但我不断收到此错误:
Msg 8117, Level 16, State 1, Line 535
Operand data type varchar is invalid for sum operator.
但是,如果我这样做:
select percent12 + percent21 as total
from finalquery
我得到:
(total)
50.0040.00
25.0025.00
100.0 0.00
100.0 0.00
100.0 0.00
我该如何解决这个问题?
谢谢你,这完美解决! – WWaldo
非常欢迎 – Eli