Alias column header

If I have a table called table1 which has two colums: col1 & col2
In this table these two columns have aliases: col1 alias is 1 & col2 alias is 2.
Normally I would do this
select col1 as 1, col2 as 2
from table1.
How can I write this query without using as for the alias, but dynamically get the aliases of col1 and col2 as defined in the table?
Thanks in advance,

Hi,
If the aliases are not hard-coded into the query, then you have to use dynamic SQL.
What 's the best way to do dynamic SQL? That depends on your front-end tool.
In SQL*Plus, substritution variables are convenient. You can run a prelimiary query to get the column aliases, and store them in substitution variables using COLUMN ... NEW_VALUE.
If your aliases do not follows the normal rules for identifiers (e.g., 1 is not normally a valid identifier), remember to enclose them in double-quotes, like this
select  col1  as "1"
,       col2  as "2"
from    table1;

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