尝试自动删除Access 2013数据库中的重复行 [英] Trying to automate removal of a duplicate row in Access 2013 database
问题描述
我正在尝试自动化Access 2013中的进程，我可以删除数据库中的重复行。我需要做的是为每个重复的员工行删除一行。我认为我需要做的是：
$
SELECT TOP 1 [ID]
来自数据库AS DB
WHERE（EmpID按类似分组值;这里需要语法）
EmpID  特殊＃    营业时间和NBSP;   名称和NBSP;      ID
1001             2         FT        蝙蝠侠   499
1001             2         FT        蝙蝠侠   495
1025             2         FT        罗宾       233
1025             2         FT        罗宾       228
我想要的是每个员工的两个ID之一，所以我可以使用ID删除该行。我不关心我删除哪两行。我永远不应该有超过两行相同的情况。
I am trying to automate a process in Access 2013 where I can delete a duplicate row in a database. What i need to do is delete one row for each of the duplicated employee lines. What I think I need to do is:
SELECT TOP 1 [ID]
FROM database AS DB
WHERE (EmpID is grouped by like values; need syntax here)
EmpID Special# Hours Name ID
1001 2 FT Batman 499
1001 2 FT Batman 495
1025 2 FT Robin 233
1025 2 FT Robin 228
What I want is one of the two IDs for each of the employees so I can use the ID to delete the row. I do not care which of the two rows I delete. I should never have a situation where there is more than two rows that are the same.
谢谢，
Christopher
Christopher
推荐答案
嗨克里斯托弗，
Hi Christopher,
一种可能的方式可能是：
One possible way could be something like:
DELETE FROM TABLENAME
DELETE FROM TABLENAME
WHERE ID IN（SELECT MAX（ID）
WHERE ID IN(SELECT MAX(ID)
FROM TABLENAME
FROM TABLENAME
GROUP BY EMPID
GROUP BY EMPID
有COUNT（*）> 1）
HAVING COUNT(*)>1)
（未经测试）
希望它有所帮助。 ..
Hope it helps...
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