I am running cron job which have following PL/SQL block:
declare begin
--insert into DB_LOGS_TEMP table from DB_LOGS table
INSERT INTO DB_LOGS_TEMP SELECT * FROM DB_LOGS WHERE DB_LOG_ID NOT IN(SELECT DB_LOG_ID from DB_LOGS_TEMP );
--keep the lat 10 records and delete other records
DELETE DB_LOGS where rowid in (
select rid from (
select t.rowid rid, row_number() over(partition by T.DB_LOG_ID order by T.TIMESTAMP desc) as rn
from DB_LOGS t)
where rn > 10);
end; The DB_LOGS table has 10247302 rows. When the cron job run it throws an error as ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS'. Does increasing the tablespce is the only solution for this issue and how to do that? The UNDOTBS has 524288000 bytes.
2 Answers
It works for me while increasing the tablespace and making autoextend on.
ALTER DATABASE DATAFILE '/vg01lv11/oracle//data/undotbs_d1_O2P00R11.dbf' AUTOEXTEND ON MAXSIZE 10g;
ALTER DATABASE DATAFILE '/vg01lv11/oracle//data/undotbs_d1_O2P00R11.dbf' RESIZE 1000M;If you can afford deleting in different transactions:
DECLARE i PLS_INTEGER;
BEGIN --insert into DB_LOGS_TEMP table from DB_LOGS table INSERT INTO DB_LOGS_TEMP SELECT * FROM DB_LOGS WHERE DB_LOG_ID NOT IN (SELECT DB_LOG_ID FROM DB_LOGS_TEMP ); COMMIT; i:=50; --keep the lat 10 records and delete other records WHILE i>=10 LOOP DELETE DB_LOGS WHERE rowid IN (SELECT rid FROM (SELECT t.rowid rid, row_number() over(partition BY T.DB_LOG_ID order by T.TIMESTAMP DESC) AS rn FROM DB_LOGS t ) WHERE rn > i ); COMMIT; i:=i-5; END LOOP;
END;
