请检查以下2点:
1.server与插件的版本是否匹配?ODBC插件用了server安装包携带的(即DolphinDB_Win64_V1.30.11\server\plugins\odbc目录下)吗?
2.ODBC连接字符串写得对不对,详情请参阅https://gitee.com/dolphindb/DolphinDBPlugin/tree/master/odbc#41-odbcconnect ,示例如下:
conn2 = conn1=odbc::connect("Driver={MySQL ODBC 8.0 UNICODE Driver};Server=127.0.0.1;Database=ecimp_ver3;User=newuser;Password=dolphindb123;Option=3;")