Rename primary key by code

Way 1:

static void CustAccountRename(Args _args)
{
　　CustTable custTable;
　　;

　　select firstOnly custTable
　　　　where custTable.AccountNum == '1103';
　　if (custTable.RecId)
　　{
　　　　custTable.AccountNum = '1103_';
　　　　custTable.renamePrimaryKey();
　　}
}

Way 2:

void renamePrimaryKey(Common _common)
{
    Common     common;
    FieldId    fieldId;
    DictTable  dictTable;
    DictField  dictField;
    ;
    common = _common;
    dictTable = new SysDictTable(common.TableId);
    dictField = new SysDictField(dictTable.id(), dictTable.primaryKeyField());

    if (isConfigurationkeyEnabled(configurationkeynum(SIG)))
    {
        SIGBaseDocument::checkAndCacheRename(common,dictField.id(),newValue);
    }

    startLengthyOperation();
    fieldId = dictField.id();
    try
    {
        ttsbegin;
        // CC Start
        CCPrimaryKey::renamePrimaryKey(common, dialogField.value(), fieldId);
        // CC End

        common.(fieldId) = dialogField.value();

        common.renamePrimaryKey();
        if (common.TableId == tablenum(UserInfo))
        {
            common.update();
        }
        ttscommit;
    }
    catch (Exception::Error)
    {
        ttsabort;
    }
}