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selecting 1 instance of duplicate records

selecting 1 instance of duplicate records

selecting 1 instance of duplicate records

Ok. Here's the problem: I have a table with duplicate data in a table (see example below). I want to select the record only once instead of the multiple times that it occurs. The problem is that I can't make a specific select statement for each individual number because the table has 70000 records. I hope this is clear.

Field1     Field2
1          1
1          2
1          3
1          4
1          5
2          1
2          2
2          3
3          1
3          2
3          3

To further elaborate, what I want is to select from Field1 1 once, 2 once and 3 once. Is there a way to do this?? Any help would be greatly appreciated.

RE: selecting 1 instance of duplicate records

Dear WakeUpDeadMan,

The DISTINCT caluse will solve your problem.

That is

In case of detailed explanation please feel free to mail me at simp_raman@rediffmail.com

RE: selecting 1 instance of duplicate records

i want to select duplicate records only in database

Can u pls help

RE: selecting 1 instance of duplicate records

Hi, Kujar

This SQL query will give you the duplicate records in the particulat table:

 select *  from  <Tabname>a
where    rowid < (
         select  max(rowid)
         from    <Tabname>b
         where   b.location_nam = a.location_nam

In case of any confusion feel free to ask.


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