[SQLSTATE] HY008 [Error] Operation canceled [Description] 
Asynchronous processing was enabled for the ConnectionHandle. The SQLSetConnectAttr function was called, and before it completed execution, the SQLCancelHandle function was called on the ConnectionHandle, and then the SQLSetConnectAttr function was called again on the ConnectionHandle. Or, the SQLSetConnectAttr function was called, and before it completed execution, SQLCancelHandle was called on the ConnectionHandle from a different thread in a multithread application.