Re: adding years to a date field - Mailing list pgsql-general

From Steve Crawford
Subject Re: adding years to a date field
Date
Msg-id 4D9C9092.3050600@pinpointresearch.com
Whole thread Raw
In response to adding years to a date field  (Christine Penner <chris@fp2.ca>)
Responses Re: adding years to a date field
List pgsql-general
On 04/06/2011 08:54 AM, Christine Penner wrote:
I have to add a number of years to a date field. The years come from another field in the table.

I know I can do this:
select (ii_purchased + interval  '3 year') as date from inventory_item;

But I need to replace the 3 in 3 years with another field from the same table ii_expected_life but I can't seem to do that without getting syntax errors
-- 
Christine Penner
Ingenious Software
250-352-9495
chris@fp2.ca
Assuming that the field is an int, multiply the value in your years column by a 1-year interval:

select ii_purchased + your_interval_field * '1 year'::date as date from inventory_item;

Cheers,
Steve

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