How to identify duplicate records and delete it .

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SQL-Server-2008R2

Can any tell me the syntax for identifying Duplicates within a table and how to delete those.

Posted 7-May-14 20:57pm

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Vi(ky · Answer 1 · 2014-05-07T21:06:00

Solution 1

see here[^]

Posted 7-May-14 21:06pm

Vi(ky

Comments

Maciej Los 8-May-14 3:07am

+5

Vi(ky 8-May-14 3:09am

thanks

Maciej Los · Answer 2 · 2014-05-07T21:10:00

Solution 2

The simplest way is:

SQL

SELECT FieldName, COUNT(FieldName) AS Counter
FROM TableName
GROUP BY FieldName
HAVING COUNT(FieldName)>1

For further information, please see: Find and/or Delete Duplicate Rows [^]

Posted 7-May-14 21:10pm

Maciej Los

DamithSL · Answer 3 · 2014-05-07T21:11:00

Solution 3

http://stackoverflow.com/questions/18932/how-can-i-remove-duplicate-rows[^]
Remove Duplicate Rows from a Table in SQL Server[^]
Hope this helps you

Posted 7-May-14 21:11pm

DamithSL

syed shanu · Answer 4 · 2014-05-07T21:13:00

Solution 4

Chk this links :

http://www.orafaq.com/faq/how_does_one_eliminate_duplicates_rows_from_a_table[^]

http://www.besttechtools.com/SQLArticles.aspx?ID=DeleteDuplicate[^]

Posted 7-May-14 21:13pm

syed shanu

thatraja · Answer 5 · 2014-05-08T05:41:00

Solution 5

Alternative suggestion.

First of all, why do you allow duplicate values. Check these
0) Constraints[^]
1) Check values before insert[^]

Posted 8-May-14 5:41am

thatraja