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Old November 18th, 2003, 12:11 PM
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Default size of table (type table is table of number)

Hi,

I'm searching how to obtain the length of a table type...

in a stored procedure, I receive a argument and this argument is an array(type table of numbers or varchars...)
 As I must loop this array(to make inserts for example) I would like to know the number of records in this array.

Is it possible?

can you please give me an example?

thanks in advance,

Michael.

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Old November 19th, 2003, 03:11 AM
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Hi Michael,

The count method for collections may be used for this. Please study the example given below:

--------------------------------------------------------------------------
SQL> set serveroutput on size 1000000
SQL>
SQL> -- create table type
SQL> create or replace type tab_number as table of number ;
  2 /

Type created.

SQL>
SQL> -- create the procedure
SQL> create or replace procedure my_proc ( p_tab_number in
tab_number ) as
  2 begin
  3 -- find out the count of elements in this table type
  4 dbms_output.put_line('Total number of elements :
'||p_tab_number.count);
  5 dbms_output.put_line('----------------------------------');
  6 -- loop thru it now
  7 for i in 1..p_tab_number.count loop
  8 dbms_output.put_line('Element '||i||' :
'||p_tab_number(i));
  9 end loop;
 10 exception
 11 when others then
 12 dbms_output.put_line('Some error occured : '||sqlerrm);
 13 end;
 14 /

Procedure created.

SQL>
SQL> show errors
No errors.
SQL>
SQL> -- now call the procedure from an anonymous block
SQL> declare
  2 v_tab_number tab_number := tab_number(null);
  3 begin
  4 for i in 1..5 loop
  5 v_tab_number.extend();
  6 v_tab_number(i) := i*100 ;
  7 end loop;
  8 v_tab_number.trim();
  9 my_proc(v_tab_number);
 10 exception
 11 when others then
 12 dbms_output.put_line('Some error occured : '||sqlerrm);
 13 end;
 14 /
Total number of elements : 5
----------------------------------
Element 1 : 100
Element 2 : 200
Element 3 : 300
Element 4 : 400
Element 5 : 500

PL/SQL procedure successfully completed.

SQL>
SQL>
--------------------------------------------------------------------------

I hope that helps you.

Cheers,
Prat


 


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