SQL Server 2008 R2：从SQL Server查询MS访问

Question

Want to retrieve records from Access through linked server in SQL Server and need to convert/cast the column with VARCHAR for some constraint.

My attempt:

SELECT Cola, Colb
FROM MSAccess_LinkedServer...TableName  
WHERE CAST([Cola] AS VARCHAR) = 'A123'

Unable to get the result from above query.

But when I remove CAST then I will get the result, but I want to know how to put the cast/convert .

Answer 1

No casting should be needed for text. How about simply:

WHERE [Cola] = 'A123'