IBM RPG400 Interview Question:

Need a sql query: retrieve all duplicate records in table?

Submitted by: Administrator

let us assume we have some duplicate records in sample table
and we can identify duplicates with eid.

The the query looks like this.

Select * from sample
where eid=any
(select eid from sample having count(eid)>1 group by eid);

Note: This should be used SQl .. but i never tried in as400
when ever it is necessary means i use following sql
statement in as400 .......

select * from sample where eid=111

it displays all duplicate records related to 111
Submitted by: Administrator