Datastores structure in oracle forms?

Question

Good Morning to all,
I would like to ask if there is any structure in oracle forms, in order to implement datastores which exost in powerbuilder. I hava the following code in powerbuilder :
integer v
if index < 1 or index > 4 then return -1
if isnull( dw[index] ) then
     dw[index] = create datastore
     dw[index].dataobject = dws[index]
     dw[index].settransobject(sqlca)
end if
if dw[index].Retrieve( erg, todate ) <> 1 then
     v = -1
else
     yy = dw[index].GetItemNumber(1,1)
     mm = dw[index].GetItemNumber(1,2)
     dd = dw[index].GetItemNumber(1,3)
     v = 1
end if
return v
which is a function that calculates a variable v, and uses an object (dw) which is a datastore.
Is there in Oracle forms any structire similar to datastore and if there, how can i implement it?
thanx a lot!

Answer 1

So, you can define tables of records.
Declare
  -- Block record --
  TYPE TYP_BLK is record
    blk_name       Varchar2(30),            -- block name
    blk_idx        Pls_integer,             -- ID of block in collection
    blk_ScrBarPos  Varchar2(1) DEFAULT 'R', -- Scroll Bar position
    blk_def_order  Varchar2(128)            -- initial ORDER BY clause
  -- Table of blocks records --
  TYPE TYP_TAB_BLK is table of TYP_BLK index by BINARY_INTEGER ;
  TB_Blocks        TYP_TAB_BLK ;
Begin
  TB_Blocks(1).blk_name := '...' ;
  TB_Blocks(2).blk_name := '...' ;
End ;Search for a PL/SQL tutorial.
Francois