How to Remove duplicate data From table in sqlserver table

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SQL-Server-2008

How to Remove duplicate data From table in sqlserver table

My table Data :

ID       Name
344B6794 Visal
CA6B5B10 Raghu
9DC012F7 Visal
FDC12AC1 Raghu
9B439B6F Rakesh
F9F7D96A Naresh
A28909C3 Rakesh

I need to get below data only

ID       Name
344B6794 Visal
CA6B5B10 Raghu
9B439B6F Rakesh
F9F7D96A Naresh

How can i get the data...?
Could any one know about this Reply me ?

Regards
Kishore

Posted 14-May-13 2:38am

nandkishorre

Updated 14-May-13 3:10am

Maciej Los

v2

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Yuriy Loginov 14-May-13 8:43am

there are no duplicates in the data because the ID is different. For example
{344B6794 Visal} is not the same as {9DC012F7 Visal}

nandkishorre 14-May-13 8:50am

Ya.. but i need names. Here names are repeated.

Maciej Los 14-May-13 9:14am

Based on which criteria?

nandkishorre 14-May-13 9:18am

Based on Name bind only name and id

5 solutions

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Prasad CM · Answer 1 · 2013-05-14T03:04:00

Solution 2

Try this one ..

SELECT Name, MAX(ID) FROM tablename
GROUP BY Name

Posted 14-May-13 3:04am

Prasad CM

RaisKazi · Answer 2 · 2013-05-14T03:12:00

Solution 3

This link should help you.

Click Here

Posted 14-May-13 3:12am

RaisKazi

Updated 14-May-13 3:13am

v2

Adarsh chauhan · Answer 3 · 2013-05-14T03:13:00

well in your case there is no duplicate data in table,
but if you consider only names as duplicate data then you can get distinct data in following ways...

SQL

select MIN(ID), Name from tbl_1
group by Name

or

SQL

select MAX(ID), Name from tbl_1
group by Name

choose any of above according to your requirement.

hope it will help.

Maciej Los · Answer 4 · 2013-05-14T03:30:00

Maciej Los - wrote:
Based on which criteria?

nandkishorre - wrote:
Based on Name bind only name and id

It's not possible, because names are duplicated, but id's not!
ID Name
344B6794 Visal is not equal to 9DC012F7 Visal
CA6B5B10 Raghu is not equal to FDC12AC1 Raghu
9B439B6F Rakesh is not equal to A28909C3 Rakesh

Till id's are differ, records are not equal!

NOTE:
If you remove any "duplicate data" (in your mind) and your data are related with other, you'll lose relationships between data.

nandkishorre · Answer 5 · 2013-05-14T03:41:00

Solution 6

SQL

select ID,Name  from Table1 as A where ID     = ( select top1 ID           from Table1          where Name= A.Name)

Posted 14-May-13 3:41am