Format first and last record of result query

Question

Hello
I have the following query
<tt>select 1 seq, 'This is First record' data from dual union all
select 2, 'Data ' || tname from tab union all
select 3, 'This was last record Last record' from dual
order by 1</tt>
When i spool this statement to a listfile with col seq noprint option i get:
This is First record
Data MLA_ACCESS_LIST
Data MLA_APPLICATIONS
Data MLA_VPD_PCK
Data MLA_VPD_TABLES
This was last record Last record
But i want:
This is First record MLA_ACCESS_LIST
Data MLA_APPLICATIONS
Data MLA_VPD_PCK
MLA_VPD_TABLES This was last record Last record
I tried it with 1 statement with usage of lead and lag, because first and last record have to differ from the other result records. But i get ORA-30484: missing window specification for this function
Is this possible with 1 statement or am i doomed to edit the results by myself?
Thanks Auke

Answer 1

select case row_number() over (order by tname)
when 1 then 'This is the First record '
end || tname ||
case row_number() over (order by tname desc)
when 1 then ' This was the last record'
end
from tab
order by tname
hth