Question

您好我正在尝试运行此更新查询：

UPDATE Employee_Table
SET Employee_Table.First_Name =
    (
        SELECT
            [Employee_Table].[Full_Name]
            ,LEFT([Full_Name], InStr([Full_Name], " ") - 1) AS First_Name
        FROM [Employee_Table]
    )
    ,Employee_Table.Last_Name =
    (
        SELECT
            [Employee_Table].[Last_Name]
            ,mid([Full_Name], InStr([Full_Name], " ") + 1) AS Last_Name
        FROM [Employee_Table]
    )
WHERE (((Employee_Table.First_Name) IS NULL) AND ((Employee_Table.Last_Name) IS NULL));

但是，我收到一条消息，说明如下： “我编写了一个子查询，可以在不使用Exists Reserved字的情况下返回多个字段。”

我在访问中构建了查询，并将大部分SQL代码放在那里。

感谢您提供的任何帮助。

Answer 1

我的猜测是你要从全名字段中提取名字和姓氏，并将它们存储在同一行。

UPDATE Employee_Table
SET
    First_Name = Left(Full_Name, InStr(Full_Name, " ") - 1),
    Last_Name = Mid(Full_Name, InStr(Full_Name, " ") + 1)
WHERE
        First_Name Is Null
    AND Last_Name Is Null;

使用Exist保留字Microsoft Access的两个更新查询

1 个答案: