Best practice for a same query against 2 different tables

Question

Hello all,
I want to extract info about tablespaces storage, both permanent and temporary. For that I use 2 different cursors that do exactly the same query but against a different table (dba_data_files and dba_temp_files).
CURSOR permanentTBSStorageInfo (tablespaceName VARCHAR2) IS
SELECT file_name, bytes, autoextensible, maxbytes, increment_by
FROM dba_data_files
WHERE tablespace_name = tablespaceName;
CURSOR temporaryTBSStorageInfo (tablespaceName VARCHAR2) IS
SELECT file_name, bytes, autoextensible, maxbytes, increment_by
FROM dba_temp_files
WHERE tablespace_name = tablespaceName;
First I'm bothered that I have to use 2 cursors to execute the same query against 2 different tables. Is there no another way around?
Then I fetch the results of this cursors in 2 different loops because I didn't find a way to dynamically call the cursors. I am looking for best practice here, knowing that I will do the same parsing against the results of the 2 cursors.
Thank you,

Answer 1

Hi
Check whether the below query is helpful or not
select      fs.tablespace_name "Tablespace",
     fs.tempspace "Temp MB",
     df.totalspace "Total MB"
     from
     (select
     tablespace_name,
     round(sum(bytes) / 1048576) TotalSpace
     from
     dba_data_files
     group by
     tablespace_name
     ) df,
     (select
     tablespace_name,
     round(sum(bytes) / 1048576) tempSpace
     from
     dba_temp_files
     group by
     tablespace_name
     ) fs
     where
     df.tablespace_name = fs.tablespace_name;
Thanks