Function SQLRowCount 

pub unsafe extern "system" fn SQLRowCount(
    hstmt: HStmt,
    row_count: *mut Len,
) -> SqlReturn

Returns the number of rows affected by an UPDATE, INSERT, or DELETE statement; an SQL_ADD, SQL_UPDATE_BY_BOOKMARK, or SQL_DELETE_BY_BOOKMARK operation in SQLBulkOperations; or an SQL_UPDATE or SQL_DELETE operation in SQLSetPos.

Returns

SUCCESS, SUCCESS_WITH_INFO, INVALID_HANDLE, or ERROR.