update批量提交
create table t2 as select object_name from dba_objects;
declare
type ridarray is table of rowid;
type vcarray is table of t2.object_name%type;
l_rids ridarray;
l_names vcarray;
cursor c is select rowid,object_name from t2;
begin
open c;
loop
fetch c bulk collect into l_rids,l_names limit 100;
forall i in 1..l_rids.count
update t2
set object_name=lower(l_names(i))
where rowid=l_rids(i);
commit;
exit when c%notfound;
end loop;
close c;
end;
/
--分批delete
drop table t3;
create table t3 as select * from dba_objects;
declare
cursor mycursor is select rowid from t3 order by rowid; --------按rowid排序的cursor，刪除條件是***=***x，根據實際情
type rowid_table_type is table of rowid index by pls_integer;
v_rowid rowid_table_type;
begin
open mycursor;
loop
fetch mycursor bulk collect into v_rowid limit 5000; --------每次處理5000行，也就是每5000行一提交
exit when v_rowid.count=0;
forall i in v_rowid.first..v_rowid.last
delete from t3 where rowid=v_rowid(i);
commit;
end loop;
close mycursor;
end;
/ --分批insert
drop table t4;
drop table t5;
create table t4 as select * from dba_objects;
create table t5 as select * from t4 where 1=0;
declare
cursor mycursor is select rowid from t4 order by rowid; --------按rowid排序的cursor，刪除條件是***=***x，根據實際情
type rowid_table_type is table of rowid index by pls_integer;
v_rowid rowid_table_type;
begin
open mycursor;
loop
fetch mycursor bulk collect into v_rowid limit 5000; --------每次處理5000行，也就是每5000行一提交
exit when v_rowid.count=0;
forall i in v_rowid.first..v_rowid.last
insert into t5 select * from t4 where rowid=v_rowid(i);
commit;
end loop;
close mycursor;
end;
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