How to break the output in a function

Question

Hi All,
I am using oracle Db 10g
I have write a function to get the output of Expire date and pass this function to Alert in oracle.
My Function is Like this
create or replace
function Expiry_alert (P_EXPIRY_DATE date)
return VARCHAR2
IS
lv_return_value varchar2(10000);
cursor c_exp_alt
is
SELECT Distinct c_po_number,c_bg_type,c_guarantee_number,c_expiry_date,c_supplier_name
from xxbgs_bank_guarantee_master
WHERE TRUNC (TO_DATE (C_expiry_date) -15) = TRIM (SYSDATE)
and c_expiry_date= p_expiry_date;
BEGIN
for c_exp_alt_rec in c_exp_alt
loop
lv_return_value:= lv_return_Value||CHR(10)||'Bank Guarantee('||c_exp_alt_rec.C_guarantee_number||','||c_exp_alt_rec.C_BG_TYPE ||','||c_exp_alt_rec.C_po_number||','||c_exp_alt_rec.c_supplier_name ||')'||'is getting expired on'||'('||C_EXP_ALT_REC.C_EXPIRY_DATE||')'||;
end loop;
return(lv_return_value);
exception
when others then
null;
--dbms_output.put_line ('Error:'sqlerrm);
--return(lv_return_value);
END;
When i execute the function using select statement like this
SELECT distinct Expiry_alert(C_EXPIRY_DATE)
FROM xxbgs_bank_guarantee_master
WHERE TRUNC (TO_DATE (C_expiry_date)-15) =
TRIM (SYSDATE)
My output is like this
Bank Guarantee(100012,Parent Company Guarantee,1000,Advantage Corp)is getting expired on(02-MAR-12) Bank Guarantee(123890,Advance Bank Guarantee,1011,Office Supplies, Inc.)is getting expired on(02-MAR-12)
In a single line, But here i have two different Guarantee number so i need two records like this
Bank Guarantee(100012,Parent Company Guarantee,1000,Advantage Corp)is getting expired on(02-MAR-12)
Bank Guarantee(123890,Advance Bank Guarantee,1011,Office Supplies, Inc.)is getting expired on(02-MAR-12)
Can any one pls tell me how to change the function to achieve this.
Regards
Srikanth
Edited by: Srikkanth.M on Feb 16, 2012 4:41 PM

Answer 1

Srikkanth.M wrote:
Hi All,
I am using oracle Db 10g
I have write a function to get the output of Expire date and pass this function to Alert in oracle.
My Function is Like this
.. snip ..
exception
when others then
null;
Seriously? Your function contains an exception handler to mask any and all errors that may occur? WHY?
When i execute the function using select statement like this
SELECT distinct Expiry_alert(C_EXPIRY_DATE)
FROM xxbgs_bank_guarantee_master
WHERE TRUNC (TO_DATE (C_expiry_date)-15) =
TRIM (SYSDATE)
My output is like this
Bank Guarantee(100012,Parent Company Guarantee,1000,Advantage Corp)is getting expired on(02-MAR-12) Bank Guarantee(123890,Advance Bank Guarantee,1011,Office Supplies, Inc.)is getting expired on(02-MAR-12)
In a single line, But here i have two different Guarantee number so i need two records like this
Bank Guarantee(100012,Parent Company Guarantee,1000,Advantage Corp)is getting expired on(02-MAR-12)
Bank Guarantee(123890,Advance Bank Guarantee,1011,Office Supplies, Inc.)is getting expired on(02-MAR-12)
Can any one pls tell me how to change the function to achieve this.Sounds like you need a pipelined function to return multiple rows...
Basic example of pipelined function with multiple columns...
CREATE OR REPLACE TYPE myrec AS OBJECT
( col1   VARCHAR2(10),
  col2   VARCHAR2(10)
CREATE OR REPLACE TYPE myrectable AS TABLE OF myrec
CREATE OR REPLACE FUNCTION pipedata(p_str IN VARCHAR2) RETURN myrectable PIPELINED IS
  v_str VARCHAR2(4000) := REPLACE(REPLACE(p_str, '('),')');
  v_obj myrec := myrec(NULL,NULL);
BEGIN
  LOOP
    EXIT WHEN v_str IS NULL;
    v_obj.col1 := SUBSTR(v_str,1,INSTR(v_str,',')-1);
    v_str := SUBSTR(v_str,INSTR(v_str,',')+1);
    IF INSTR(v_str,',')>0 THEN
      v_obj.col2 := SUBSTR(v_str,1,INSTR(v_str,',')-1);
      v_str := SUBSTR(v_str,INSTR(v_str,',')+1);
    ELSE
      v_obj.col2 := v_str;
      v_str := NULL;
    END IF;
    PIPE ROW (v_obj);
  END LOOP;
  RETURN;
END;
SQL> select *
  2  from table(pipedata('(1,2),(3,4),(5,6)'));
COL1       COL2
1          2
3          4
5          6of course why you need to do this in a function in the first place? Can't you just query the data concatenated as you want it?