Table cast PL/SQL: ORA-00902: invalid datatype

Question

I m getting
PL/SQL: ORA-00902: invalid datatype
error in
OPEN pPymtCur FOR
SELECT *
FROM TABLE(CAST( up_gap_tra_reports.myArray AS traArray));
in my package up_gap_tra_reports.
CREATE OR REPLACE PACKAGE GAPSDVEL.up_gap_tra_reports
AS
TYPE traRecord IS RECORD
group1StudEnrol NUMBER(6,1),
group2StudEnrol NUMBER(6,1),
pymtAmt gap_payment.NET_AMT%TYPE
TYPE traArray IS TABLE OF traRecord;
myArray traArray := traArray() ;
END up_gap_tra_reports;
I hv alreay declared traArray type.
pls help me to solve this.

Answer 1

Meghna wrote:
is there any way to use pl/sql collection in SQL or refcur without creating it because i am not able to create type in database.The only way I am aware of is pipelined function:
create or replace
  package pkg1
    is
      type traRecord
        is record(
                  ename emp.ename%type,
                  sal   emp.sal%type
      TYPE traArray IS TABLE OF traRecord;
      function f1
        return traArray
        pipelined;
end;
create or replace
  package body pkg1
    is
    function f1
        return traArray
        pipelined
      is
          v_rec traRecord;
      begin
          v_rec.ename := 'Sam';
          v_rec.sal := 1000;
          pipe row(v_rec);
          v_rec.ename := 'John';
          v_rec.sal := 1500;
          pipe row(v_rec);
          v_rec.ename := 'Mary';
          v_rec.sal := 2000;
          pipe row(v_rec);
          return;
    end;
end;
/Now you can:
SQL> select * from table(pkg1.f1)
  2  /
ENAME             SAL
Sam              1000
John             1500
Mary             2000
SQL>Keep in mind, it will create system generated types:
SQL> select type_name from user_types
  2  /
TYPE_NAME
SYS_PLSQL_73305_9_1
SYS_PLSQL_73305_DUMMY_1
SYS_PLSQL_73305_34_1
SQL> desc SYS_PLSQL_73305_9_1
Name                                      Null?    Type
ENAME                                              VARCHAR2(10)
SAL                                                NUMBER(7,2)
SQL> desc SYS_PLSQL_73305_DUMMY_1
SYS_PLSQL_73305_DUMMY_1 TABLE OF NUMBER
SQL> desc SYS_PLSQL_73305_34_1
SYS_PLSQL_73305_34_1 TABLE OF SYS_PLSQL_73305_9_1
Name                                      Null?    Type
ENAME                                              VARCHAR2(10)
SAL                                                NUMBER(7,2)
SQL> SY.