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Finding duplicate records and potential mispellings in an array

Posted on 2011-02-16
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Last Modified: 2012-06-21
Hi There

I have an array of of peoples names

Example
string[] names = new string[] {"Jim Bean","Jack Daniels" ,"Jim Bean" ,"Tim Bean"}

How do I loop through the array to find duplicates.
I also need to know how I can find similar names in the array to find mispelt names as in the example.
pseudo-code will be good enough



Thanks
Stanton
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Question by:Stanton_Roux
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Expert Comment

by:starlite551
ID: 34910707
Use can use Oracle To Solve this Issue.. There is a Function in Oracle called Soundex() which Finds Names Which Sound Similar.. So It Would be a good option for you to find duplicates in names..
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starlite551 earned 500 total points
ID: 34910738
Also, check out the Difference function in SQL to compare soundexes:

In the first part of this example, the SOUNDEX values of two very similar strings are compared, and DIFFERENCE returns a value of 4. In the second part of this example, the SOUNDEX values for two very different strings are compared, and DIFFERENCE returns a value of 0.

USE pubs
GO
-- Returns a DIFFERENCE value of 4, the least possible difference.
SELECT SOUNDEX('Green'),
  SOUNDEX('Greene'), DIFFERENCE('Green','Greene')
GO
-- Returns a DIFFERENCE value of 0, the highest possible difference.
SELECT SOUNDEX('Blotchet-Halls'),
  SOUNDEX('Greene'), DIFFERENCE('Blotchet-Halls', 'Greene')
GO
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LVL 12

Expert Comment

by:starlite551
ID: 34910748
I think SOUNDEX function is also available in SQL Server.. So try searching for more info about it..
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