-- Collection of code snippets by Arne Vajhøj 
-- (likely posted to comp.os.vms/INFO-VAX, INFO-TPU, MACRO32, eksperten.dk, newz.dk, LinkedIn or other place sometime between 1990 and now) 
alter table e drop constraint PrimaryKey;
alter table e alter column id counter;
alter table e add constraint PrimaryKey primary key(id);
