I have one file with fields
F1 F2 F3 ....
1 2 31
2 3 32
3 4 33
and I have to update it from another file with fields
F1 F3
1 51
3 53
where F1 is the key field
as a result I must receive:
F1 F2 F3 ....
1 2 51
2 3 32
3 4 53
How can I do it?