Re: Question

Hello Christopher,

I don't need delete record from jobs when I delete record from
activity. But I need delete record from activity when I delete the
record from jobs and I need to find this job_id in activities table!
What must I do?

CKL> Question: Why don't you just set up a foreign key that will achieve exactly
CKL> the same thing without using RULEs?

CKL> ie. ALTER TABLE activities ADD FOREIGN KEY (job_id) REFERENCES jobs(job_id)
CKL> ON DELETE CASCADE;

CKL> Chris

>> I have the rule for table
>> CREATE RULE del_jobs_del_activity AS ON DELETE TO jobs DO
>> DELETE FROM activities WHERE job_id = OLD.job_id;
>>
>> When i call:
>> DELETE FROM jobs WHERE job_id IN (SELECT DISTINCT job_id FROM
>> activities WHERE load_no = OLD.load_no)
>> This query does not delete the record from jobs but delete the
>> record by rule.

Best regards,
Andriy mailto:andriy(dot)pyrozhenko(at)vanjaonline(dot)com