Search in the same table

Question

Hello
I have a table with the folowing information
RowID Asset Version TYPE
1A 345 1 PPS
B2 345 2 pps
A3 345 3 pps
F4 321 1 ppp
G5 321 2 ppp
H6 333 1 pps
I need a Query to get the most updated version of the asset
The final result afther the query should be:
A3 345 3 pps
G5 321 2 ppp
H6 333 1 pps
Help Please

Answer 1

SQL> with tbl
  2  as
  3  (select '1A' rowid_,  345 assest, 1 version,  'PPS' type_ from dual
  4  union all
  5  select 'B2' rowid_,  345 assest, 2 version,  'PPS' type_ from dual
  6  union all
  7  select 'A3' rowid_,  345 assest, 3 version,  'PPS' type_ from dual
  8  union all
  9  select 'F4' rowid_,  321 assest, 1 version,  'PPS' type_ from dual
10  union all
11  select 'G5' rowid_,  321 assest, 2 version,  'PPS' type_ from dual
12  union all
13  select 'H6' rowid_,  333 assest, 1 version,  'PPS' type_ from dual)
14  select distinct  max(rowid_) keep (dense_rank last order by version)  over (partition by assest) rowid_,
15           max(assest) keep (dense_rank last order by version)  over (partition by assest) assest,
16           max(version) keep (dense_rank last order by version)  over (partition by assest) version,
17           max(type_) keep (dense_rank last order by version)  over (partition by assest) type_a
18  from  tbl
SQL> /
ROWID_     ASSEST    VERSION TYPE_A
G5          321          2 PPS
A3          345          3 PPS
H6          333          1 PPS
SQL>