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1002
1003
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20
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2002
2003
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1002
1003
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10
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2002
2003
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SQL> with table1 as(
2 select 10 id from dual union all
3 select 1001 from dual union all
4 select 1002 from dual union all
5 select 1003 from dual union all
6 select 1004 from dual union all
7 select 20 from dual union all
8 select 2001 from dual union all
9 select 2002 from dual union all
10 select 2003 from dual
11 )
12 select id from table1 order by substr(id,0,1),length(id) desc,substr(id,length(id),1);
ID
----------
1001
1002
1003
1004
10
2001
2002
2003
20
9 rows selected
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