puoi fornire alias alle nuove colonne nel pivot IN dell'istruzione clausola.(NB:Questo è diverso dallo standard dove clausola IN() che non consente alias.)
with testdata as
(
select 'Fred' First_Name, 10 Items from dual
union
select 'John' First_Name, 5 Items from dual
union
select 'Jane' First_Name, 12 Items from dual
union
select 'Fred' First_Name, 15 Items from dual
)
select * from testdata
pivot (
sum(Items)
for First_Name
in ('Fred' as fred,'John' as john,'Jane' as jane)
)
e anche per la tua clausola aggregata che è necessaria se hai più clausole..
with testdata as
(
select 'Fred' First_Name, 10 Items from dual
union
select 'John' First_Name, 5 Items from dual
union
select 'Jane' First_Name, 12 Items from dual
union
select 'Fred' First_Name, 15 Items from dual
)
select * from testdata
pivot (
sum(Items) itmsum,
count(Items) itmcnt
for First_Name
in ('Fred' as fred,'John' as john,'Jane' as jane)
)
resi
FRED_ITMSUM FRED_ITMCNT JOHN_ITMSUM JOHN_ITMCNT JANE_ITMSUM JANE_ITMCNT
----------- ----------- ----------- ----------- ----------- -----------
25 2 5 1 12 1
Ovviamente puoi quindi chiudere il cerchio e utilizzare l'aliasing Oracle standard e rinominarli come preferisci, incluso inserire nuovamente le virgolette..
with testdata as
(
select 'Fred' First_Name, 10 Items from dual
union
select 'John' First_Name, 5 Items from dual
union
select 'Jane' First_Name, 12 Items from dual
union
select 'Fred' First_Name, 15 Items from dual
)
select FRED_ITMSUM "Fred's Sum", FRED_ITMCNT "Fred's Count"
, JOHN_ITMSUM "John's Sum", JOHN_ITMCNT "John's Count"
, JANE_ITMSUM "Janes's Sum", JANE_ITMCNT "Janes's Count"
from testdata
pivot (
sum(Items) itmsum,
count(Items) itmcnt
for First_Name
in ('Fred' as fred,'John' as john,'Jane' as jane)
)
dà
Fred's Sum Fred's Count John's Sum John's Count Janes's Sum Janes's Count
---------- ------------ ---------- ------------ ----------- -------------
25 2 5 1 12 1
