I have tried many ways to update a table :
UPDATE personnes T1 SET T1.nom_naiss=T1.nom FROM personnes T2,
personnes T3
WHERE ;
UPDATE personnes T1 SET T1.nom_naiss=T1.nom FROM personnes T1,
personnes T2, personnes T3
WHERE ..;
In my case , where clause is : WHERE T1.id=T2.id_mer
data in my table so I can’t confirm the logic. You seem to want to
update mother’s maiden name if her current (sur)name doesn’t match that of the
father of (one of?) her children? That might be a serious leap of faith.)
Now I check manually... ;)
On May 22, 2019, at 6:43 AM, Pierre Couderc