Help delete statement

Hi all
We have the following text:
create table tt1 (c1 varchar2(10), c2 varchar2(10));

insert into tt1 values('AA','11');
insert into tt1 values('AA','11');
insert into tt1 values('AA','11');
insert into tt1 values('AA','11');
insert into tt1 values('AA','11');
insert into tt1 values('BB','22');
insert into tt1 values('BB','22');
insert into tt1 values('BB','22');
insert into tt1 values('BB','22');
I want to remove expandable lines... If the output should be:

AA 11
BB 22


and other lines to remove. We don't have a singularity.
Any ideas?


Version: 10g



Thanks in advance,
Bahchevanov.

There are several methods:

AskTom: Duplicate deletion of records
AskTom: Duplicate deletion of records without using rowid, and rownum
AskTom: to remove duplicate records

Tags: Database

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