NexusDB： <unnamed TnxODBCQuery instance> ：查询执行失败：在行比较时键入不匹配（nxtInterval &lt;&gt; nxtNullString）

Question

Getting the error below, when I was trying to pull the records from Nexus Database.

Error:

NexusDB: : Query execution failed: Type mismatch (nxtInterval <> nxtNullString) when comparing at [$3CA0/15520]

Query:

SELECT * from 
FROM Student
INNER JOIN Department on Department.Code =  Student.DepartmentCode AND (Department.INACTIVE = false OR Department.INACTIVE IS NULL) 
WHERE  Student.DepartmentCode in ?listofCode?

listofCode=> 'Mec,Ece'

Note: We are using Dapper

Answer 1

Using a parameter for the IN ... list is not supported. Use literals, eg IN ('Mec', 'Ece')