How can I copy non-blank values to a new column from different columns in the same la

[المشرف العام]

My data:
n1 n2 n3 NEW_COLUMN
11 null null
null 33 null
null null 55

my desired result:
n1 n2 n3 NEW_COLUMN
11 null null 11
null 33 null 33
null null 55 55

Thanks!



أكثر...