How to select the duplicate rows from a table?

Answers were Sorted based on User's Feedback



How to select the duplicate rows from a table?..

Answer / nans

Select FIELD1 From <TABLENAME> As Temp Group By FIELD1 Having
Count(*) >1;

Is This Answer Correct ?    14 Yes 1 No

How to select the duplicate rows from a table?..

Answer / channabasappa

select field name from tablename where group by field name
having count(field name)>1;

Is This Answer Correct ?    1 Yes 0 No

How to select the duplicate rows from a table?..

Answer / mahesh vasudevan

Select <col-name> from table A1 and A2
where A1.Col = A2.Col.

This should be an inner join. Then you are finding the
intersection of the key values...if you want to find the
duplicates for all matching column of the rows code AND
condition for join with all those columns.....by the way
there are different easy ways to find it. but this is one of
the way.

Is This Answer Correct ?    0 Yes 0 No

How to select the duplicate rows from a table?..

Answer / pandu

select distinct from <field name> from <table name>

Is This Answer Correct ?    0 Yes 3 No

Post New Answer

More DB2 Interview Questions

What is an instance database?

0 Answers  


What is bind and rebind in db2?

0 Answers  


What information can you find in SYSIBM.SYSLINKS table?

1 Answers   TCS,


What are the prerogatives?

0 Answers  


Can you search give an array in the WHERE clause of a db2 query?

1 Answers  






Explain about rct.

0 Answers  


can i code union in cobol-db2 pgm ?

4 Answers   Patni,


What is with ur in db2?

0 Answers  


What is a clustering index?

2 Answers  


Explain packages.

0 Answers  


how 2 resolve the -311 sqlcode

1 Answers  


can any one give the list of some important sql abend codes which r frequently asked in interviews?

2 Answers  


Categories