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我想做类似这篇文章的事情，所以我尝试了：

SELECT 
   ROW_NUMBER() OVER(ORDER BY t.[Data Saida] ) AS id, 
   t.codigo, t.[Data Saida], t.Entidade, t.DataEnt, 
   t.[GTEntT Nº], t.Estado, t.[GTSaida Nº], t.[Observações1], 
   t.Eequisitante, t.Certificado, T.Resultado, T.Seleccionar, t.[Tipo de Intervenção]
FROM 
   [Movimento ferramentas] t;

但是我最终得到了类似的东西

查询表达式 ROW_NUMBER() OVER(ORDER BY t.[Data Saida] 中的语法错误（缺少运算符）

是因为ROW_NUMBER() OVER()只有 SQL Server 还是我做错了什么？

我正在使用 MS Access 2010。

这是该表中的一行：

[Movimento ferramentas] 行

4

1 回答 1

1

要将自动编号字段添加到现有表格，只需在设计视图中打开表格，输入Field Name并从下拉列表中选择“自动编号” Data Type：

自动编号.png

Access 将使用表中任何现有记录的自动编号值填充新字段。

编辑重新：影响将自动编号值应用于现有记录的顺序

与许多其他数据库操作一样，在将自动编号值分配给现有记录时，基本上不能保证Access 将使用任何特定顺序。但是，如果我们看几个示例，我们可以看到 Access可能会如何做到这一点。

请考虑以下名为 [Events] 的示例表。这些行是按随机顺序输入的，并且没有主键：

EventDate   Event         
----------  --------------
2012-06-01  it's June     
2012-10-01  it's October  
2012-09-01  it's September
2012-12-01  it's December 
2012-11-01  it's November 
2012-07-01  it's July     
2012-04-01  it's April    
2012-08-01  it's August   
2012-02-01  it's February 
2012-01-01  it's January  
2012-03-01  it's March    
2012-05-01  it's May

现在我们将使用上述过程简单地添加一个名为 [ID] 的自动编号字段。完成之后

SELECT * FROM Events ORDER BY ID

返回

EventDate   Event           ID
----------  --------------  --
2012-06-01  it's June        1
2012-10-01  it's October     2
2012-09-01  it's September   3
2012-12-01  it's December    4
2012-11-01  it's November    5
2012-07-01  it's July        6
2012-04-01  it's April       7
2012-08-01  it's August      8
2012-02-01  it's February    9
2012-01-01  it's January    10
2012-03-01  it's March      11
2012-05-01  it's May        12

现在让我们回到表的旧副本，看看是否存在主键会产生影响。我们将 [Event Date] 设为主键，将更改保存到 table，然后添加 [ID] AutoNumber 字段。完成之后，上面的select语句给了我们

EventDate   Event           ID
----------  --------------  --
2012-06-01  it's June        1
2012-10-01  it's October     2
2012-09-01  it's September   3
2012-12-01  it's December    4
2012-11-01  it's November    5
2012-07-01  it's July        6
2012-04-01  it's April       7
2012-08-01  it's August      8
2012-02-01  it's February    9
2012-01-01  it's January    10
2012-03-01  it's March      11
2012-05-01  it's May        12

嗯，一样的。因此，即使存在主键，看起来自动编号值也会以自然顺序（将记录添加到表中的顺序）分配给表。

好的，如果是这种情况，那么让我们使用生成表查询以不同的顺序创建表的新副本

SELECT Events.EventDate, Events.Event 
INTO Events2
FROM Events
ORDER BY Events.EventDate;

现在让我们将 [ID] AutoNumber 字段添加到该新表中，看看我们得到了什么：

SELECT * FROM Events2 ORDER BY ID

返回

EventDate   Event           ID
----------  --------------  --
2012-01-01  it's January     1
2012-02-01  it's February    2
2012-03-01  it's March       3
2012-04-01  it's April       4
2012-05-01  it's May         5
2012-06-01  it's June        6
2012-07-01  it's July        7
2012-08-01  it's August      8
2012-09-01  it's September   9
2012-10-01  it's October    10
2012-11-01  it's November   11
2012-12-01  it's December   12

如果这是我们想要的顺序，那么我们可以删除 [Events] 表并将 [Events2] 重命名为 [Events]。

于 2013-11-05T20:13:11.940 回答