TABLE(CAST()) function not returning the correct results in few scenarios.

Question

I am using TABLE(CAST()) operation in PL/SQL and it is returning me no data.
Here is what I have done:
1.     Created Record type
CREATE OR REPLACE TYPE target_rec AS OBJECT
target__id          NUMBER(10),
target_entity_id NUMBER(10),
dd           CHAR(3),
fd           CHAR(3),
code      NUMBER(10),
target_pct      NUMBER,
template_nm VARCHAR2(50),
p_symbol      VARCHAR2(10),
pm_init          VARCHAR2(3),
target_name     VARCHAR2(20),
targe_type     VARCHAR2(30),
target_caption     VARCHAR2(30),
sort_order      NUMBER (4)
2.     Created Table type
CREATE OR REPLACE TYPE target_arr AS TABLE OF target_rec
3.     Created Stored procedure which accepts parameter of type target_arr and runs the Table(Cast()) function on it.
     Following is the simplified form of my procedure.
     PROCEDURE get_target_weights
     p_in_template_target IN target_arr,
     p_out_count          OUT NUMBER,
     IS
     BEGIN
          SELECT count(*) into p_out_count
     FROM TABLE(CAST(p_in_template_target AS                     target_arr)) arr;
     END;
I am calling get_target_weights from my java code and passing p_in_template_target with 10140 records.
Scenario 1: If target_pct in the last record is 0, p_out_count returned from the procedure is 0.
Scenario 2: If target_pct in the last record is any other value(say 0.01), p_out_count returned from the procedure is 10140.
Please help me understand why the Table(Cast()) is not returning the correct results in Scenario 1. Also adding or deleting any record from the test data returns the correct results (i.e. if keep target_pct in the last record as 0 but add or delete any record).
Let me know how can I attach the test data I am using to help you debugging as I don’t see any Attach file button on Post Message screen on the forum.

Answer 1

I am not able to reproduce this problem with a small data set. I can only reproduce with the data having 10140 records.
I am not sure if this is the memory issue as adding a new record also solves the problem.
This should not be the error because of wrong way of filling the records in java as for testing purpose I just saved the records which I am sending from java in a table. I updated the stored procedure as well to read the data from the table and then perform TABLE(CAST()) operation. I am still getting 0 as the output for scenario 1 mentioned in my last mail.
Here is what I have updated:
1.     Created the table target_table
CREATE Table target_table
target_id          NUMBER(10),
target_entity_id NUMBER(10),
dd           CHAR(3),
fd           CHAR(3),
code      NUMBER(10),
target_pct      NUMBER,
template_nm VARCHAR2(50),
p_symbol      VARCHAR2(10),
pm_init          VARCHAR2(3),
target_name     VARCHAR2(20),
target_type     VARCHAR2(30),
target_caption     VARCHAR2(30),
sort_order      NUMBER (4)
2.     Inserted data into the table : The script has around 10140 rows. Pls let me know how can I send it to you
3.     Updated procedure to read data from table and stored into variable of type target_arr. Run Table(cast()) operation on target_arr and get the count
PROCEDURE test_target_weights
IS
     v_target_rec target_table%ROWTYPE;
     CURSOR wt_cursor IS
     Select * from target_table;
     v_count NUMBER := 1;
     v_target_arr cws_target_arr:= target_arr ();
     v_target_arr_rec target_rec;
     v_rec_count NUMBER;
     BEGIN
     OPEN wt_cursor;
     loop
          fetch wt_cursor into v_target_rec; -- fetch data from table into local           record.
          exit when wt_cursor%notfound;
          --move data into target_arr
          v_target_arr_rec :=                     cws_curr_pair_entity_wt_rec(v_target_rec target_id,v_target_rec. target_entity_id,
                    v_target_rec.dd,v_target_rec.fd,v_target_rec.code,v_target_rec.target_pct,
     v_target_rec.template_nm,v_target_rec.p_symbol,v_target_rec.pm_init,v_target_rec.template_name,
     v_target_rec.template_type,v_target_rec.template_caption,v_target_rec.sort_order);
          v_target_arr.extend();
          v_target_arr(v_count) := v_target_arr_rec;
          v_count := v_count + 1;
     end loop;
     close wt_cursor;
     -- run table cast on target_arr
     SELECT count(*) into v_rec_count
     FROM TABLE(CAST(v_target_arr AS target_arr)) arr;
     DBMS_OUTPUT.enable;
     DBMS_OUTPUT.PUT_LINE('p_out_count ' || v_rec_count);
     DBMS_OUTPUT.PUT_LINE('v_count ' || v_count);
END;
Output is
p_out_count 0
v_count 10140
Expected output
p_out_count 10140
v_count 10140