RE: How to find DUPLICATE KEYS FOUND

From: Larry Taylor <ltaylor_at_iq.com>
Date: Tue, 20 Feb 2001 12:49:55 -0800
Message-ID: <F001.002B8F71.20010220121541@fatcity.com>

Thanks William it worked, but how to delete it?

-----Original Message-----
Sent: Tuesday, February 20, 2001 9:36 AM To: Multiple recipients of list ORACLE-L

how about

select rowid,p_id,p_name
from p_answer pa
where rowid > (select min(pa2.rowid)
from p_answer pa2
where pa.p_id = pa2.p_id and pa.p_name = pa2.p_name)

This will display the p_id,p_name and rowid of all the duplicate rows that have the same p_id and p_name.

>>> Larry Taylor <ltaylor_at_iq.com> 02/20/01 11:56AM >>> Hi all,

How can I find duplicate keys and drop the duplicate? My database is 8.1.6 and I tried the following
and got this error:

CREATE UNIQUE INDEX I_SA_C_OWNERID_C_NAME ON P_ANSWER (P_ID , P_NAME ) PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536) LOGGING TABLESPACE USERS; ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found

Thanks in advance.

Larry
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Author: Larry Taylor
INET: ltaylor_at_iq.com

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Author: William Beilstein
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