Recommendation to remove duplicates on Mac

I have a Mac version 10.7.2
I have found that I have hundreds of duplicates of information on my mac . This I found out when undertaking a search with spotlight.
Please advise what would be a safe utility to easily remove duplicates.
thank you
sue

The dublicates i am mostly referring to you are from my gmail. Here I would have duplicates plus on each email sent , received as well as drafts. See attachment
Sue

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I'm having some significant problems with Apple Mail, and despite having researched widely, I haven't been able to find a solution yet. Here is my tale of woe...
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hi Eric
thanks for the tip, but I don't think that solves my problem, which is that Mail apparently hides the duplicates, so they're still there, you just can't differentiate or remove them. I actually *need* the duplicates there so I know I've got everything, but then I need to be able to move the ones I know I've dealt with from my inbox to an archive/trash, and/or remove them completely so Mail isn't totally bloated

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Apologies, this was posted here in error. Please find updated post here: https://discussions.apple.com/message/27261965#27261965

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is there something like this for Mac?
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+is there a good program or freeware that can automate and isolate when I have
duplicate files hiding in the many folders on my Drive.+
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+Time machine won't let you remove something after you realized you backed
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I have found a very satisfactory solution to eliminating my duplicates in Apple Mail, which is to stop using it and switch to Thunderbird.
There's lots that I like better in Apple Mail, but Thunderbird is light-years more flexible in managing your email than is Apple Mail, because Thunderbird is an open platform with excellent Add-ons available, which include the nifty Remove Duplicate Messages: http://bit.ly/tbird-dups. It is stupid that Apple Mail hides duplicate messages in the background & won't allow users to search and destroy them. Frustrating!
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HT2905 My itunes looks nothing like the examples in this tutorial. I do not have "display exact duplicates" or "date added". Can someone please help me remove duplicate songs? Also, I downloaded two audio books and they are showing up in my song list.

My itunes looks nothing like the examples in this tutorial. I do not have "display exact duplicates" or "date added". Can someone please help me remove duplicate songs? Also, I downloaded two audio books and they are showing up in my song list. Why???

'Show duplicates' is now under the 'View' menu. To see the 'Date added' column go to 'View options' from the 'View' menu and check it in the section under 'Stats'.
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Hi,
I want to remove duplicates from a Account table
Contains 2 column Account_id and Account_type
values in Account table are
Account_id Account_type
1 GPR
1 GPR
1 GPR
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Petri wrote:
Hi,
I want to remove duplicates from a Account table
Contains 2 column Account_id and Account_type
values in Account table are
Account_id Account_type
1 GPR
1 GPR
1 GPR
I want only one entry and remove other entry with Account_Id = 1
Thanks,
PetriHi Petri,
Depending on how important performance is for you, go for option 1 if performance is key, else go for option 2. Option 3 is highly recommended, if this is one time exercise:
Option 1. For OLTP [performance is important]
DELETE FROM account_table
WHERE ROWID IN
(SELECT ROWID
FROM (SELECT ROWID,
ROW_NUMBER ()
OVER (
PARTITION BY Account_id,
Account_type
ORDER BY
Account_id, Account_type
rn
FROM account_table)
WHERE rn > 1);
Option 2. [If you are playing around]
DELETE FROM account_table
WHERE rowid not in ( SELECT min(rowid)
FROM account_table
GROUP BY Account_id,
Account_type);
Option 3. [Seriously considering to make sure that no more dirty stuff]
a) Create a temporary table account_table_temp
b) Use the below
INSERT INTO ACCOUNT_TABLE_TEMP
(SELECT *
FROM ACCOUNT_TABLE
WHERE ROWID IN ( SELECT MIN (ROWID)
FROM ACCOUNT_TABLE
GROUP BY ACCOUNT_ID, ACCOUNT_TYPE));
c) Create constraint so that in future you won't have duplicates in future.
Thanks,

Recommendation to remove duplicates on Mac

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