Can we print the data from types or return it to java ?

Question

Hello,
The requirement is very clear that, their is a huge amount of data (80 lacs Rows Approx.) these rows are need to be showed in the front-end which is java. First the java team had written a simple select statement in the java codeing which was taking a quite a large time (10 - 20 min approx.), then i shifted this part to back-end i,e ORACLE 11g & wrote the plsql block below which consist of types.
Now i have managed to bring the data in types but how to print that data ??? is their any member function ???  How should i return this data to java code ???
ORACLE DATABASE 11g
Eclips Java
Linux Enterprice Edition 5
create or replace procedure date_time(v_fromtime in timestamp,v_totime in timestamp) is
type v_date_time is table of varchar2(4000);--T_MES_DSS_BLOCK_DATA_13.Date_Time%type;
datetime_tab v_date_time:=v_date_time();
type v_counter is table of T_MES_DSS_BLOCK_DATA_13.Counter%type;
counter_tab v_counter:=v_counter();
type v_column_1 is table of number;
column1_tab v_column_1:=v_column_1();
type v_column_2 is table of number;
column2_tab v_column_2:=v_column_2();
cursor dt is
select DATE_TIME, COUNTER,COLUMN_1, COLUMN_2
from (
select
/*+  INDEX(T_MES_DSS_BLOCK_DATA_13 IDX_MES_BLK_DATA_3_DATE_TIME) INDEX(T_MES_DSS_BLOCK_DATA_13 IDX_MES_BLK_DATA_3_COUNTER)*/
DATE_TIME, COUNTER,
dbms_xdbutil_int.rawtonum(SUBSTR(BLOCK_COLUMN_23, 121, 8))COLUMN_1,
dbms_xdbutil_int.rawtonum(LAG( (SUBSTR(BLOCK_COLUMN_23, 121, 8)),1,0 ) OVER (ORDER BY DATE_TIME ))COLUMN_2 
from T_MES_DSS_BLOCK_DATA_13 PARTITION(PART11JUN2010) 
where DATE_TIME BETWEEN v_fromtime and v_totime);
end_time number;
start_time number;
begin
start_time:=dbms_utility.get_time();
open dt;
loop
fetch dt bulk collect into datetime_tab,counter_tab,column1_tab,column2_tab;
exit when dt%notfound;
end loop;
close dt;
dbms_output.put_line('Number of Rows in Date_time:- ('||datetime_tab.count||'):');
dbms_output.put_line('Number of Rows in Counter:- ('||counter_tab.count||'):');
dbms_output.put_line('Number of Rows in column1:- ('||column1_tab.count||'):');
dbms_output.put_line('Number of Rows in column2:- ('||column2_tab.count||'):');
end_time:=dbms_utility.get_time();
dbms_output.put_line('Total Time:-'||to_char(end_time-start_time)/60);
end date_time;

Answer 1

Well anyhow i have managed to run this code using bulk collect feature & getting good performance but can i print this data ???
how to return this data which has bulk collect feature to java code ??? any idea ?
CREATE OR REPLACE PROCEDURE "MES01"."DATE_TIME"(v_fromtime in timestamp,v_totime in timestamp,
datetime_tab out t_mes_dss_block_data_13.date_time%type,
counter_tab out t_mes_dss_block_data_13.counter%type,
column1_tab out number,
column2_tab out number) is
cursor dt is
select DATE_TIME, COUNTER,COLUMN_1, COLUMN_2,rownum
from (
select  /*+  INDEX(T_MES_DSS_BLOCK_DATA_1 IDX_MES_BLK_DATA_1_DATE_TIME) INDEX(T_MES_DSS_BLOCK_DATA_1 IDX_MES_BLK_DATA_1_COUNTER)*/
DATE_TIME, COUNTER,
dbms_xdbutil_int.rawtonum(SUBSTR(BLOCK_COLUMN_1, 1, 4))COLUMN_1,
dbms_xdbutil_int.rawtonum(LAG( (SUBSTR(BLOCK_COLUMN_1, 1, 4)),1,0 )   OVER (ORDER BY DATE_TIME ))COLUMN_2 
from T_MES_DSS_BLOCK_DATA_1 PARTITION(PART03AUG2010) 
where DATE_TIME BETWEEN '02-AUG-2010 09:00:00.0' and '02-AUG-2010 09:10:00.0')  
where COLUMN_1 =0 and COLUMN_2 != 0 or (rownum=1 and COLUMN_1 = 0 and COLUMN_2 = 0);
--end_time number;
--start_time number;
begin --1st block
Declare --2nd declare
type v_date_time is table of T_MES_DSS_BLOCK_DATA_3.DATE_TIME%type;
datetime_tab v_date_time:=v_date_time();
type v_counter is table of T_MES_DSS_BLOCK_DATA_3.Counter%type;
counter_tab v_counter:=v_counter();
type v_column_1 is table of number;
column1_tab v_column_1:=v_column_1();
type v_column_2 is table of number;
column2_tab v_column_2:=v_column_2();
type v_rownum is table of number;
rownum_tab v_rownum:=v_rownum();
Begin --2nd block
--start_time:=dbms_utility.get_time();
open dt;
loop
fetch dt bulk collect into datetime_tab,counter_tab,column1_tab,column2_tab,rownum_tab;
exit when dt%notfound;
end loop;
close dt;
--dbms_output.put_line('Number of Rows in Date_time:- ('||datetime_tab.count||'):');
--dbms_output.put_line('Number of Rows in Counter:- ('||counter_tab.count||'):');
--dbms_output.put_line('Number of Rows in column1:- ('||column1_tab.count||'):');
--dbms_output.put_line('Number of Rows in column2:- ('||column2_tab.count||'):');
--end_time:=dbms_utility.get_time();
--dbms_output.put_line('Total Time:-'||to_char(end_time-start_time)/60);
end; -- 2nd block
end date_time; -- 1st block