Answer / megha

select
'Quarter to '||to_char((to_date('01/01/'||substr(Src,2), 'dd/mm/rrrr')),'rrrr') as "Target"
from table

Answer / ajit

select substr(src, 1,1 )||'uarter to '||to_char(to_date (substr(src, 2), 'rrrr'), 'yyyy') tgt
from <Table Name>

Answer / abhiraj

with data as (select 'Q10' as src from dual)
select
'Quarter to '||to_char((to_date('01/01/'||substr(Src,2), 'dd/mm/rrrr')),'rrrr') as "Target"
from data

Answer / aditya saxena @adi

select 'Quarter to '||to_char(to_date('01/01/'||substr(months,2),'dd/mm/rrrr'),'RRRR') AS Src_Tgt from (
select 'Q10' months from dual
union all
select 'Q90' from dual
union all
select 'Q80' from dual
union all
select 'Q74' from dual
)
;

Answer / manohar

select 'Quarter to' ||to_char(cast('1/1/'||substr(Src) as
char),'YYYY') from table

What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.

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