Question

我有一个包含40个类似表的MS Access数据库。为简单起见，下面仅列出了几个。如果该行中的日期是昨天，我想从一行中获取3个数据单元格。这些数据来自其他员工的自制电子表格，他们拒绝放弃。因此，我无法更改列名或将它们全部放在同一工作簿模板上。我在下面的代码中尝试了一些变体，但我无法让日期正常工作。如果我删除WHERE语句，它将返回所有内容。但我真的需要它削减。提前谢谢！

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1081
WHERE [Quote Completed] = date()-1
UNION

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1145
WHERE [Quote Completed] = date()-1
UNION

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1149
WHERE [Quote Completed] = date()-1
UNION 

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1228
WHERE [Quote Completed] = date()-1
UNION 

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1353
WHERE [Quote Completed] = date()-1
;

Answer 1

你真的需要在工会的每个部分都有条件吗？或者你只是希望过滤整个结果？

SELECT * FROM (
    SELECT [Customer name],[$ Amount], [Quote Completed]
    FROM 1081
    UNION
    SELECT [Customer name],[$ Amount], [Quote Completed]
    FROM 1145
    UNION
    SELECT [Customer name],[$ Amount], [Quote Completed]
    FROM 1149
    UNION 
    SELECT [Customer name],[$ Amount], [Quote Completed]
    FROM 1228
    UNION
    SELECT [Customer name],[$ Amount], [Quote Completed]
    FROM 1353) U
WHERE [Quote Completed] = date()-1

Answer 2

您可能需要使用dateadd：

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1081
WHERE [Quote Completed] = DateAdd('d',-1, date())

添加了链接：http://www.techonthenet.com/access/functions/date/dateadd.php

Answer 3

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1081
WHERE ([Quote Completed] = date()-1)
UNION

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1145
WHERE ([Quote Completed] = date()-1)
UNION

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1149
WHERE ([Quote Completed] = date()-1)
UNION 

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1228
WHERE ([Quote Completed] = date()-1)
UNION 

SELECT [Customer name],[$ Amount], [Quote Completed]
FROM 1353
WHERE ([Quote Completed] = date()-1)
;

为什么赢得了我的＆＃34; WHERE＆＃34;语句在sql中工作？

3 个答案: