How to check whether or not the value is already in the collection

Hello

I'm in the analysis of a donkey of xml file assigning values to the collection.
For each new record, that I am available for capture of xml, I need to check if this value already exists in the collection or not, and then only I must add this value to the collection.
How we do that. I am not able to check whether or not it is already present in the collection. Help, please.

Here is my code

TYPE tab_A_type_rec IS RECORD)
Name Varchar2 (50);
);

TYPE tab_A_type IS TABLE OF THE tab_A_type_rec;

pkv_A_tab tab_A_type: = tab_A_type ();

l_nl: = dbms_xslprocessor.selectnodes (dbms_xmldom.makeNode (l_doc), ' / / List "");
for cur_rec in 0... dbms_xmldom.GetLength (l_nl)-1 LOOP
l_n: = dbms_xmldom.item (l_nl, cur_rec);

pkv_A_tab.extend; -----
pkv_A_tab (pkv_A_tab. (Last). Name: = dbms_xslprocessor.valueOf (l_n,'Name / text () '); -I have to do these two steps only after checking whther that value is already present in the collection pkv_A_tab or not... What will be the stated case.

end loop;

Thank you
Pramod

Peter Gjelstrup wrote:

Then in the final use TOGETHER to eliminate duplicates.

The only problem - cannot use SET operator nested table records ;) or even on a table nested objects, unless the object type has map/delivery orders. Now if in real life, record type has only one attribute - NAME OP can just create type of TABLE OF VARCHAR2 (50). Then:

SQL> declare
  2      type tab_A_type is table of varchar2(50);
  3      pkv_A_tab tab_A_type := tab_A_type('A','B','C','A','B','C','D');
  4  begin
  5  if 'B' member of pkv_A_tab
  6    then
  7      dbms_output.put_line('Found B.');
  8  end if;
  9  pkv_A_tab := set(pkv_A_tab);
 10  dbms_output.put_line('List of distinct elements:');
 11  for i in 1..pkv_A_tab.count loop
 12    dbms_output.put_line(pkv_A_tab(i));
 13  end loop;
 14  end;
 15  /
Found B.
List of distinct elements:
A
B
C
D

PL/SQL procedure successfully completed.

SQL>

SY.

Tags: Database

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