Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


Write a query to delete duplicate records in SQL SERVER

Answers were Sorted based on User's Feedback



Write a query to delete duplicate records in SQL SERVER..

Answer / dharmesh

your table look like this and want to delete duplicate
record

chandran 23
ranjith 24
chandran 23


delete top(1) from tablename where name='chandran' and
age=23

Is This Answer Correct ?    3 Yes 28 No

Write a query to delete duplicate records in SQL SERVER..

Answer / sonia

Create table info(comp_id int identity(101,1),comp_name
varchar(50))
insert into info values('Progressive Ltd.')
insert into info values('Progressive Ltd.')
insert into info values('EliResearch')
insert into info values('Patni')
insert into info values('Accenture')
insert into info values('Accenture')
select * from info

DELETE FROM info
WHERE comp_name IN
(SELECT comp_name FROM info
GROUP BY comp_name HAVING COUNT(comp_name) > 1)

Is This Answer Correct ?    12 Yes 38 No

Write a query to delete duplicate records in SQL SERVER..

Answer / anil

delete from tab_nam where

Is This Answer Correct ?    2 Yes 30 No

Write a query to delete duplicate records in SQL SERVER..

Answer / skumar

Hi friends, please just try out this. This works fine for me.

We have lot of methods to do this. But using temp table,
drop the original table,retain the temp as orinial is not a
good pratice.

When u have large no of data it will affect ur performance.


DELETE FROM employee WHERE((SELECT eid,COUNT(eid) FROM
employee GROUP BY eid) > 1)

Is This Answer Correct ?    15 Yes 46 No

Write a query to delete duplicate records in SQL SERVER..

Answer / chandran.s

Table Name: Example

Name Age
chandran 23
ranjith 24
chandran 23

To delete one of the duplicate records use following query


delete from example where age in(select age from example
group by age having count>1)

Is This Answer Correct ?    13 Yes 46 No

Write a query to delete duplicate records in SQL SERVER..

Answer / chandran

There is a table like this: tablename: example


Name Age
chandran 23
ranjith 24
chandran 23

In this table the name:chandran and age:23 are the
duplicate records .so we need to delete this using this
sql statements


delete from example group by name,age having count>1

Is This Answer Correct ?    37 Yes 107 No

Post New Answer

More SQL Server Interview Questions

What is split brain scenario in DB mirroring?

1 Answers  


What is a system database and what is a user database?

0 Answers  


how many bits ip address consist of? : Sql server database administration

0 Answers  


What’s the distinction between dropping a info and taking a info offline?

0 Answers  


How do you trace the traffic hitting a sql server?

0 Answers  


How can you insert null values in a column while inserting the data?

0 Answers  


Can you create UNIQUE and PRIMARY KEY constraints on computed columns in SQL Server 2000?

3 Answers   Infosys,


what is bit data type? and what are the information that can be stored inside a bit column?

2 Answers  


What options are there to delete rows on the publisher and not on the subscriber? : sql server replication

0 Answers  


What are the different types of cursor?

0 Answers   HCL,


How to insert data with null values?

0 Answers  


what is unique and xaml nonclustered index

0 Answers  


Categories