I would like to select from a nested table type using regular sql.
create table invoices(invoice_id number);
insert into invoices values(100);
insert into invoices values(200);
insert into invoices values(300);
insert into invoices values(500);
create or replace type invoice_obt
as object (
invoice_id number
);
/
create type invoices_ntt
as table of invoice_obt;
/
Here is my plsql for that
declare
l_invoices invoices_ntt := invoices_ntt();
begin
l_invoices.extend(3);
l_invoices(1) := invoice_obt(100);
l_invoices(2) := invoice_obt(200);
l_invoices(3) := invoice_obt(200);
select invoice_id from invoices where invoice_id in (select * from table(l_invoices));
end;
and I run into an error saying
select invoice_id from table(l_invoices);
*
ERROR at line 8:
ORA-06550: line 8, column 1:
PLS-00428: an INTO clause is expected in this SELECT statement
I would like to join this table l_invoices with my regular invoice table . Any ideas on how do I do that ?
The issue is not in the way you use types, but in the fact that you are trying to do a select query from within a Pl/SQL block without fetching the result INTO any variable.
You code could be:
DECLARE
l_invoices invoices_ntt := invoices_ntt ();
/* define a variable to host the result of the query */
TYPE tIdList IS TABLE OF NUMBER;
vIdList tIdList;
BEGIN
l_invoices.EXTEND (3);
l_invoices (1) := invoice_obt (100);
l_invoices (2) := invoice_obt (200);
l_invoices (3) := invoice_obt (200);
SELECT invoice_id
BULK COLLECT INTO vIdList /* BULK COLLECT because you can have more than one row */
FROM invoices
WHERE invoice_id IN (SELECT * FROM TABLE (l_invoices));
END;
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