SQL联盟所有“语法Eror in从句子”

Question

我很努力与MS Access 2010 SQL。任何人都可以看到为什么下面的SQL语句会在FROM子句中产生“语法错误？”

INSERT INTO Attendance 
SELECT [AttendanceData].Student, [AttendanceData].[10/1/2015] AS AttendValue, 
"10/1/15" AS AttendDate 
FROM [AttendanceData] 
UNION ALL 
SELECT [AttendanceData].Student, [AttendanceData].[10/2/2015] AS AttendValue, 
"10/2/15" As AttendDate 
FROM [AttendanceData]; 

个人陈述做工精细，但与UNION ALL结合，我收到

语法错误在FROM子句“。

任何帮助，将不胜感激！

谢谢

Answer 1

尝试使用某些东西这样的：

INSERT INTO Attendance 
SELECT R.Student, R.AttendValue, R.AttendDate 
FROM 
(
    (SELECT [AttendanceData].Student, [AttendanceData].[10/1/2015] AS AttendValue, 
    "10/1/15" AS AttendDate 
    FROM [AttendanceData]) 

    UNION ALL 

(SELECT [AttendanceData].Student, [AttendanceData].[10/2/2015] AS AttendValue, 
    "10/2/15" As AttendDate 
    FROM [AttendanceData]) 
) AS R 

Answer 2

在MS Access的Jet/ACE SQL，你不能在追加查询使用联合查询直接。您将看到查询调试器突出显示UNION ALL语句。

将联合查询单独保存为存储的查询对象，然后将其用于追加查询的SELECT语句中。

INSERT INTO Attendance 
SELECT * FROM UnionAttendance 

或者，你可以使用派生表：

INSERT INTO Attendance 
SELECT * 
FROM ( 
    SELECT [AttendanceData].Student, [AttendanceData].[10/1/2015] AS AttendValue, 
    "10/1/15" AS AttendDate 
    FROM [AttendanceData] 
    UNION ALL 
    SELECT [AttendanceData].Student, [AttendanceData].[10/2/2015] AS AttendValue, 
    "10/2/15" As AttendDate 
    FROM [AttendanceData] 
);