use virtual table in PL/SQL block

    
SQL>
SQL>
SQL> create or replace type virtual_table_type as table of number
  2      /

Type created.

SQL> create or replace
  2      function virtual_table( p_start number,
  3                              p_end number ) return virtual_table_type as
  4        l_vt_type virtual_table_type := virtual_table_type();
  5      begin
  6        for i in p_start .. p_end loop
  7          l_vt_type.extend();
  8          dbms_output.put_line( 'adding ' || i || ' to collection...' );
  9          l_vt_type(l_vt_type.count) := i;
 10       end loop;
 11       dbms_output.put_line( 'done...' );
 12       return l_vt_type;
 13     end virtual_table;
 14     /

Function created.

SQL> set serveroutput on
SQL>      begin
  2        for x in ( select *
  3                     from table( virtual_table( -2, 2) ) )
  4        loop
  5          dbms_output.put_line( 'printing from anonymous block ' ||
  6                                x.column_value );
  7        end loop;
  8      end;
  9      /
adding -2 to collection...
adding -1 to collection...
adding 0 to collection...
adding 1 to collection...
adding 2 to collection...
done...
printing from anonymous block -2
printing from anonymous block -1
printing from anonymous block 0
printing from anonymous block 1
printing from anonymous block 2

PL/SQL procedure successfully completed.

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use virtual table in PL/SQL block : Table of number « PL SQL « Oracle PL / SQL

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