sql - 如何在 LIKE 语句中连接 % 和列名

Question

我正在尝试这个:

SELECT FacilityID, FacilityName, CMSProviderID, [Provider Number] 
FROM G2_Facility, SCIPHospitalCompare
WHERE [Provider Number] LIKE '%' + CMSProviderID + '%';

我得到:

Msg 245, Level 16, State 1, Line 1
Conversion failed when converting the varchar value '%' to data type int.

我做错了什么？我看到很多例子都在做这样的事情，但由于某种原因它根本不起作用。

谢谢!

Answer 1

我假设 [Provider Number] 或 CMSProviderID 是数字字段？

将数字字段转换为字符串以比较两者:

SELECT FacilityID, FacilityName, CMSProviderID, [Provider Number]  
FROM G2_Facility, SCIPHospitalCompare 
WHERE CAST([Provider Number] as nvarchar(50)) LIKE 
    '%' + CAST(CMSProviderID as nvarchar(50)) + '%';