How to upgrade a table column using the values in the Oracle collection

create or replace procedure test_coll

IS

CURSOR upd 
IS
SELECT CONTACT_NAME FROM Supplier_16;

TYPE dept IS TABLE OF upd%rowtype;
cur_var dept;

Type List Is table Of  varchar2(20);
Name List:=  List('Shilpi','Sunil','Shreyas','Saral');

BEGIN

OPEN upd;
LOOP
     FETCH upd BULK COLLECT INTO cur_var;
--    EXIT WHEN upd%NOTFOUND;

     FORALL i IN cur_var.FIRST..cur_var.LAST
  
     UPDATE supplier_16
**  SET Contact_name= name(i);  ***
     
     COMMIT;

END LOOP;
CLOSE upd;

END;
On the "BOLD" line, I don't know how I should move the values of the collection of name I said without which are set all the values in the table supplier_16 = 'Saral.

Help, please.

Aashish S. wrote:
Thank you very much...

Yes, I slide collections and was trying to reach somwthing on similar lines to which you provided the code example...

My essay is equipped to take a collection: initialized with values of say 3-4...

Take other tables... A column... and update the column in the table (not PK, FK anything) using the values of the initialized collection...

However, I am stuck between the two on how the UPDATE clause should be...

OK, if it's just because you want to practice with collections, you might do something like this...

SQL> set serverout on
SQL> create table supplier_16 as
  2  select 'Frederick' as contact_name from dual union all
  3  select 'Robert' from dual union all
  4  select 'Jeremy' from dual union all
  5  select 'Simon' from dual
  6  /

Table created.

SQL> create or replace procedure test_coll is
  2    CURSOR upd IS
  3      SELECT CONTACT_NAME
  4      FROM Supplier_16
  5      FOR UPDATE;
  6    Type List Is table Of  varchar2(20);
  7    Name List := List('Shilpi','Sunil','Shreyas','Saral');
  8    v_contact_name varchar2(30);
  9    v_idx          number := 1;
 10  BEGIN
 11    OPEN upd;
 12    LOOP
 13       FETCH upd INTO v_contact_name;
 14       EXIT WHEN upd%NOTFOUND;
 15       UPDATE supplier_16
 16       SET    contact_name = name(v_idx)
 17       WHERE CURRENT OF upd;
 18       DBMS_OUTPUT.PUT_LINE(v_contact_name||' update to '||name(v_idx));
 19       v_idx := v_idx + 1;
 20    END LOOP;
 21    CLOSE upd;
 22    COMMIT;
 23  END;
 24  /

Procedure created.

SQL> exec test_coll;
Frederick update to Shilpi
Robert update to Sunil
Jeremy update to Shreyas
Simon update to Saral

PL/SQL procedure successfully completed.

SQL> select * from supplier_16;

CONTACT_N
---------
Shilpi
Sunil
Shreyas
Saral

Of course, there is treatment rank by rank and is not best for performance, but it allows you to access your collection that you created names.

Tags: Database

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