The following block is giving an exception.why?

Question

DECLARE
TYPE typ_tab_oid IS TABLE OF ncs_domain.sco_item_results.OID%TYPE;
v_tab typ_tab_oid;
CURSOR cur_oid
IS
SELECT OID
FROM ncs_domain.sco_item_results sir
WHERE sir.is_total = 'Y';
v_error_code number(10);
v_error_mesg varchar2(4000);
BEGIN
OPEN cur_oid;
LOOP
FETCH cur_oid
BULK COLLECT INTO v_tab LIMIT 1000;
FORALL i IN 1 .. v_tab.COUNT
DELETE FROM ncs_domain.sco_item_results_bkp sir
WHERE sir.OID = v_tab (i);
EXIT WHEN cur_oid%NOTFOUND;
END LOOP;
CLOSE cur_oid;
EXCEPTION
WHEN OTHERS
THEN
v_error_code:=sqlcode;
v_error_messg:=sqlerrm;
insert into my_error_log values()
raise_application_error (-20001, v_error_code||''||v_error_messg);
END;
exception that i am getting is ora-30036: unable to extend segment by 8 in undo tablespace........
why??
also prior to script i had no index on the column is_total of table ncs_domain.sco_item_results
when i ran the scipt it gave the output in approx 3 hrs.
once i created bitmap index on the column is_total and it is taking 5 hrs.
SAD Part is that even after 5hrs i get an exception that no space in undo tablespace(mentioned above).
How do i handle this exception.??I am a user.Dont have any sys previliges also.
Can saomebody help in improving the perfomace of the script..
The script is basically deleting approx 10,000,000 records.

Answer 1

Hi.
Following is the sript of the table.
It already includes nologging clause.
CREATE TABLE SCO_ITEM_RESULTS_BKP
OID VARCHAR2(32 CHAR) NOT NULL,
TEST_ID NUMBER(22,10),
STUDENT_OID VARCHAR2(32 CHAR),
TEST_TYPE VARCHAR2(32 CHAR),
CUSTOMER_ID NUMBER(9) NOT NULL,
SCORED_DATE DATE,
STATUS VARCHAR2(50 CHAR),
SCORE_VALUE VARCHAR2(10 CHAR),
SCORE_MIN VARCHAR2(10 CHAR),
SCORE_MAX VARCHAR2(10 CHAR),
NUM_ATTEMPTS NUMBER(22,4),
ITEM_ID NUMBER(22,10),
ASSIGNMENT_OID VARCHAR2(32 CHAR),
AUTH_LEVEL_ENTITY_ID NUMBER(10),
SESSION_ID NUMBER(22,10),
CREATEDBY_OID VARCHAR2(32 CHAR),
UPDATEDBY_OID VARCHAR2(32 CHAR),
CREATEDATE DATE,
UPDATEDATE DATE,
ORIGINTYPECD_OID VARCHAR2(32 CHAR),
OWNER_ORGUNIT_OID VARCHAR2(32 CHAR),
APPLICATION_VERSION VARCHAR2(32 CHAR) NOT NULL,
INACTIVESTATUS CHAR(1 CHAR) NOT NULL,
ISDELETED CHAR(1 CHAR) NOT NULL,
JOB_ID VARCHAR2(32 CHAR),
TESTRESULTS_OID VARCHAR2(32 CHAR),
FORM_ID NUMBER(10),
IS_TOTAL CHAR(1 CHAR),
STUDENT_PERSON_OID VARCHAR2(32 CHAR)
TABLESPACE BASE_DATA
PCTUSED 0
PCTFREE 10
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 64K
MINEXTENTS 1
MAXEXTENTS 2147483645
PCTINCREASE 0
BUFFER_POOL DEFAULT
NOLOGGING
NOCACHE
NOPARALLEL
MONITORING;
Edited by: user8731258 on Nov 25, 2009 8:16 PM