PL SQL UPDATE STATEMENT

Question

create table item_stock
( itemcode        varchar2(11)   not null,
  name            varchar(27)    not null,
  des             varchar2(30),
  pcs             number(11),
  unit            varchar(7),
  qty             number(11),
  stkdate         date,
  constraint itemcodef_pk primary key(itemcode, name)
);



BEGIN
update table item_stock
set 'item_stock.itemcode' = 'item_stock.itemcode';
END;

Error 103 at line 2, column 14
Encountered the sysmbol "ITEM_STOCK" when expecting one of the following.

Can anybody help me to resolve this error.

Answer 1

This one:

Update item_stock A
   Set A.itemcode = item_stock.itemcode;

Note:

The data type of the item_stock.itemcode must be same as A.itemcode .