Only put the last record retreived into the item form

Question

Hi All,
I am trying to show all the retreived records of a query in a multi-line formTEXT item. However, it seems to me that only the last record shows rather than all records. The code is below where DM_AR is a package and OPEN_R_TYPE, Fetch_data are two procedures which uses a cursor variable. The below code runs perfectly in SQLPLus if we replace the :RESULT_TEXT := .., with a DBMS_output.put_line build-in procedure.
Any suggestion Plz......
F
DECLARE
-- declare a cursor variable
RES DM_AR.ruleitem_type;
TEMP_row TEMP_TBL%ROWTYPE;
BEGIN
-- open the cursor using a variable
DM_AR.OPEN_R_TYPE(RES, :MODEL_NAME);
-- fetch the data and display it
LOOP
DM_AR.Fetch_data(RES, TEMP_ROW);
EXIT WHEN RES%NOTFOUND;
:RESULT_TEXT := 'RuleNo: ' || TEMP_ROW.RULE_ID || ' Conf: '|| TEMP_ROW.R_CONF || 'Supp: ' || TEMP_ROW.R_SUPP || ' IF: ' || TEMP_ROW.ANTECEDENT || ' THEN: ' || TEMP_ROW.CONSEQUENT;
END LOOP;
END;

Answer 1

You are overwriting your item :RESULT_TEXT everytime in the loop. So, you only see the final result. You probably want this:
:RESULT_TEXT := :RESULT_TEXT || ' RuleNo: ' || ...
...