Re: Batch process

On 7/20/22 01:28, Ron wrote:
> On 7/20/22 00:08, Rama Krishnan wrote:
>> Hi All,
>>
>> I am doing purge activity my sales table contains 5M records I am
>> going to delete more than 1 year data (which was 3M) records so it was
>> running more so I want to do batch wise deletion through plsql
>>
>>
>>
>>
>>  created or replace function data_purge() returns void as$$
>> Declare
>> Begin
>> Drop table test_old;
>> Create table test_old as select * from sales where bill_date<now()
>> -interval '1 year';
>>
>> Delete table sales where sales_id in (select sales_id from test_old;
>>
>> End;
>> $$ language plpgsql;
>>
>>
>> Kindly guide me
>
> Why not just DELETE FROM sales WHERE bill_date<NOW() -INTERVAL '1 year';?
>

Because it looks like the OP is saving the old records in test_old.

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com