将字符串替换为要加入的Id时无法JOIN表

Question

我有如下数据：

[Main].[Relation]
'SalesMan1'
'Supplier1'
'Customer2'

SQL查询：

SELECT * 
FROM [Main] [M]
INNER JOIN [SalesMan] [S]
ON [S].[Id] = Replace([M].[Relation],'SalesMan','')
WHERE [M].[Relation] LIKE 'SalesMan%'


Getting exeception :
**Conversion failed when converting the nvarchar value 'Supplier1' to data type int.**

请指导我如何解决它。

等待你宝贵的想法。

提前致谢。

Answer 1

而不是=使用LIKE

SELECT * 
FROM   [Main] [M] INNER JOIN 
       [SalesMan] [S] ON [S].[Id] = CAST(REPLACE([M].[Relation],'SalesMan','') AS INT)
WHERE  [M].[Relation] LIKE 'SalesMan%'