procedure实例1

create or replace procedure delete_communication_c IS
usercount number;
cursor cur is
    select id from communication_changeduser where modifytime<add_months(sysdate,-1);
BEGIN
    for curitem in cur
    loop
        delete from communication_changeduser where id=curitem.id;
    end loop;
    commit;
end delete_communication_c;

 

 

 

select MODIFYTIME from communication_changeduser;

 

MODIFYTIME 

02-9月 -10 08.00.44.000000 下午

 

 

 

select T.COLUMN_NAME,T.DATA_TYPE from dba_tab_columns t where t.TABLE_NAME='COMMUNICATION_CHANGEDUSER';

 

1 ID NVARCHAR2
2 USERCODE NVARCHAR2
3 MODIFYTIME TIMESTAMP(6)
4 OPERTYPE NVARCHAR2
5 USERTYPE NVARCHAR2