Function SQLMoreResults 

pub unsafe extern "system" fn SQLMoreResults(
    statement_handle: HStmt,
) -> SqlReturn

Determines whether more results are available on a statement containing SELECT, UPDATE, INSERT, or DELETE statements and, if so, initializes processing for those results.

Returns

SUCCESS, SUCCESS_WITH_INFO, SQL_STILL_EXECUTING, SQL_NO_DATA, ERROR, INVALID_HANDLE, or SQL_PARAM_DATA_AVAILABLE.