Sum(misses)/(sum(gets)

Hi,
is it any way to combine all these :
select name, gets, misses,
immediate_gets, immediate_misses, sleeps
from v$latch
where name in ('redo allocation', 'redo copy')
set head off
select 'Ratio of MISSES to GETS: '||
round((sum(misses)/(sum(gets)+0.00000000001) * 100),2)||'%'
from v$latch
where name in ('redo allocation', 'redo copy')
select 'Ratio of IMMEDIATE_MISSES to IMMEDIATE_GETS: '||
round((sum(immediate_misses)/
(sum(immediate_misses+immediate_gets)+0.00000000001) * 100),2)||'%'
from v$latch
where name in ('redo allocation', 'redo copy')
Many thanks.

I tried this
SELECT name, gets, misses,
immediate_gets, immediate_misses, sleeps, 'Ratio of MISSES to GETS: '||
round((sum(misses)/(sum(gets)+0.00000000001) * 100),2)||'%', 'Ratio of IMMEDIATE_MISSES to IMMEDIATE_GETS: '||
round((sum(immediate_misses)/
(sum(immediate_misses+immediate_gets)+0.00000000001) * 100),2)||'%'
FROM v$latch
WHERE name IN ('redo allocation', 'redo copy')
GROUP BY name, gets, misses,immediate_gets, immediate_misses, sleeps
but I have
query column #7 ('RATIOOFMISSESTOGETS:'||ROUND((SUM(MISSES)/(SUM(GETS)+0.00000000001)*100),2)||'%') is invalid, use column alias
Please help.

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Sum(misses)/(sum(gets)

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