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ali_far
Obsidian | Level 7

Hi,

I have a simple question:


data table 1;
input id A B C;
cards;
1 2 3 4
2 5 5 5
3 7 6 5
4 9 6 1
5 5 7 2
6 7 8 1
run;

 

data table 2 ;
input id A B C;
cards;
1 2 3 4
1 4 2 5
1 5 3 12
1 7 34 3
2 5 5 5
2 6 12 0
2 9 3 2
2 11 3 1
3 7 6 5
3 23 3 2
3 12 12 44
4 4 23 33
4 9 6 1
5 5 7 2
6 7 8 1
run;

 

I want to update  variable B in Table 1 where the id in two tables are the same (first condition) and A is at maximum in table 2.

Because for some id( say 1, 2) in table 2  I have several rows.

 

So, it will be the updated table:

 

data table 1;
input id A B C;
cards;
1 2 34 4
2 5 3 5
3 7 3 5
4 9 6 1
5 5 7 2
6 7 8 1
run;


proc SQL;
update table 1 set B= (select B from table 2 where table 1.id=table 2.id  and table 2.A=max); quit;

 

I know the above code, after the and is not correct!!!

 

Thanks

1 REPLY 1
PeterClemmensen
Tourmaline | Level 20

@ali_far, please do not double post 🙂 

 

See my answer in your related thread here and let me know if it works for you

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