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SQL> with t as(
2 select 10 id from dual union all
3 select 11 from dual union all
4 select 12 from dual union all
5 select 13 from dual
6 )
7 select 'id' col_id from dual
8 union all
9 select to_char(id) from t;
COL_ID
----------------------------------------
id
10
11
12
13