Re: Duplicate key error

On 3/3/21 7:23 AM, Andrus wrote:
> Hi!
>
> Sometimes duplicate key error
>
>     duplicate key value violates unique constraint "session_pkey"
>     Key (workplace)=(WIN-N9BSKUNKBC8 ) already exists.
>
> occurs in script:
>
>     delete from session where workplace='WIN-N9BSKUNKBC8' ;
>     INSERT INTO session (workplace,ipaddress,logintime,loggeduser)
>     SELECT 'WIN-N9BSKUNKBC8' ,
> inet_client_addr()::CHAR(14),current_timestamp::CHAR(28),CURRENT_USER
> WHERE NOT EXISTS (SELECT 1 FROM session WHERE workplace='WIN-N9BSKUNKBC8' )
>
> Sript is running form windows task scheduler on every 10 minutes. Error
> occurs only sometimes.

There is no other process inserting to this table?

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