Retrieving records from a Data Block same as retrieving records from cursor

Dear Gurus,
Is it possible to retrieve records from a datablock same as retrieving records from a cursor,
Eg:
I am having two data blocks in two different tabs, Say B1 in Tab1, B2 in Tab2
B1 is filled with two records, now when I switch to Tab2,
I want all records of B1 in B2, assuming that blocks are having the same structure.
The code I wish to write is,
Goto B1,
Take all the records like a cursor,
Goto B2,
loop
insert
end loop;
Is this possible???

I need to show it before saving,
I tried this and it is successful somehow, do not know about any further problems,
I took the record count of both blocks
if :B1.reccount <> :B2.reccount
               then
               go_block('B1');
               first_record;
               for i in 1..:B1.reccount
               loop
                    go_block('B1');
                    go_record(i);
          assign values from B1 to variables.
          go_block('B2');
          assign values from variables to B2
          next_record;
               end loop;
               clear_record;
          end if;
This is working, Now I just want to know, if my block is having numerous fields, say more than 100 (may not be a value for large databases)
how can I replace these variables here.
I mean is it possible to declare something like a cursor record type.
For eg : r1 cursor%rowtype

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Edited by: 990092 on Feb 25, 2013 12:15 AM

990092 wrote:
Hello professionals,
I having difficulty in finding solutions to query data from multiple data blocks. By the way I'm using Oracle Forms 10g
I have 4 data blocks and all items are database items
Below are the blocks,
1. student_main (columns : student_id, student_name, student_state)
2. subject_main (columns : subject_id, subject_desc, subject_student_id)
3. invoice_main (columns : invoice_no, invoice_amt, invoice_student_id)
4. receipt_main (columns : receipt_no, receipt_amt, receipt_invoice_ref)
The form will need to allow user to be able to query from any of the items/fields from the data blocks as listed above
For eg,
: if user query student_id then all related value items from table subject_main, invoice_main, receipt_main need to be displayed
: if user query invoice_no then all related value items from table student_main, subject_main, receipt_main need to be displayed
However the tricky part is that some student might have or might not have invoice / receipt data
I tried using relations but it didn't work both ways
I even create relations in every table (student_main to subject_main, subject_main to student_main, invoice_main to student_main, student_main to invoice_main and etc.) but it just make my running process hang
In general, relation will work. your relation creating was wrong, i think.
do as
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null

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Jonathan Lewis wrote:
Solomon Yakobson wrote:
Read Concepts manual. Database Buffer Cache in particular:Every buffer has an access mode: pinned or free (unpinned).
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Retrieving records from a Data Block same as retrieving records from cursor

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