Question

How can I select from a typed set in Oracle 10g?

I.E. SELECT * FROM (3,5,20,68,54,13,56,899,1)

Additionally, how would I filter it?

I.E. SELECT * FROM (3,5,20,68,54,13,56,899,1) WHERE > 5

Answer 1

Where is the data coming from and what are you planning on doing with it?

If the data is being read from a file, you would normally create an external table to read from the file or use SQL*Loader or some other ETL tool to load the data into a staging table or a PL/SQL collection that you could then query

SQL> create type num_tbl is table of number;
  2  /

Type created.

SQL> ed
Wrote file afiedt.buf

  1  declare
  2    l_nums num_tbl := num_tbl( 3, 5, 20, 68, 54 );
  3  begin
  4    for x in (select * from table(l_nums))
  5    loop
  6      dbms_output.put_line( x.column_value );
  7    end loop;
  8* end;
SQL> /
3
5
20
68
54

If you’re doing some sort of manual process, you would normally be looking for data from another table, i.e.

SELECT *
  FROM some_other_table
 WHERE some_key IN (3, 5, 20, 68, 54, 13, 56, 889, 1 );

If you’re really trying to generate a data set full of arbitrary data pulled from a file that you don’t want to use Oracle to read, you can always do a series of SELECT statements from DUAL that are all UNION ALL‘d together but this obviously gets rather cumbersome.

WITH sample_data
  AS (SELECT 3 num FROM dual UNION ALL
      SELECT 5 FROM dual UNION ALL
      SELECT 20 FROM dual UNION ALL
      SELECT 68 FROM dual UNION ALL
      SELECT 54 FROM dual UNION ALL
      ...
      SELECT 1 FROM dual)
 SELECT *
   FROM sample_data
  WHERE num > 5;

Additionally, using the WITH clause and a CSV string we can parse a string as a table.
Example:

VARIABLE liste VARCHAR2(100)

EXECUTE :liste := '5, 25, 41, 52'; 

WITH liste AS (
  SELECT SUBSTR(:liste, INSTR(','||:liste||',', ',', 1, rn),
  INSTR(','||:liste||',', ',', 1, rn+1) - 
  INSTR(','||:liste||',', ',', 1, rn)-1) valeur
FROM (
  SELECT ROWNUM rn FROM DUAL
  CONNECT BY LEVEL<=LENGTH(:liste) - LENGTH(REPLACE(:liste,',',''))+1))
SELECT TRIM(valeur)
FROM liste;