Hello Everyone,
I have to datasets Dataset A and Dataset B. I want to join age to Table A using variables ID and sales.
Table A | Table B | ||||
ID | sales | ID | sales | age | |
1 | car | 1 | car | 11 | |
1 | bike | 1 | bike | 12 | |
1 | truck | 2 | car | 23 | |
2 | car | 2 | bike | 23 | |
3 | bike | 3 | bike | 24 | |
3 | bike | 6 | bike | 32 | |
3 | truck | 4 | car | 18 | |
6 | bike | 4 | truck | 19 | |
4 | car | 5 | bike | 20 | |
4 | truck | ||||
5 | bike |
The output should look like below:
ID | sales | age |
1 | car | 11 |
1 | bike | 12 |
1 | truck | . |
2 | car | 23 |
3 | bike | 24 |
3 | bike | 24 |
3 | truck | . |
6 | bike | 32 |
4 | car | 18 |
4 | truck | 19 |
5 | bike | 20 |
Thank you!
Now we're talking! See working code below and compare with what you've posted.
data want;
merge a(in=ina) b;
by id sales;
if ina;
run;
proc sql;
create table want2 as
select a.*,b.age
from a
left join b
on a.id=b.id and a.sales= b.sales;
quit;
What's the problem? Where do you get stuck?
Have you tried a SAS data step MERGE with by group {ID, Sales} or a SQL left join with table B on the right side?
Hello Patrick,
Thanks for quick reply. I tried using both strategies and nothing is working. I want the output as shown above. The merge statement is giiving values from the table B which I wont need. The left join statement I used is giving me different output I expected. Please correct my code if its wrong.
data a;
input ID sales$;
datalines;
1 car
1 bike
1 truck
2 car
3 bike
3 bike
3 truck
6 bike
4 car
4 truck
5 bike
;
data b;
input ID sales$ age;
datalines;
1 car 11
1 bike 12
2 car 23
2 bike 23
3 bike 24
6 bike 32
4 car 18
4 truck 19
5 bike 20
;
proc sort data= a;
by id sales;
run;
proc sort data= b;
by id sales;
run;
data want;
merge a b;
by id sales;
run;
proc sql;
create table want2 as
select a.*,b.age from a a
left join b b
on a.sales= b.sales;
quit;
Thanks!
Your SQL join condition is incorrect. You need an = for every BY variable (ID and Sales)
Then you should get the correct results.
Now we're talking! See working code below and compare with what you've posted.
data want;
merge a(in=ina) b;
by id sales;
if ina;
run;
proc sql;
create table want2 as
select a.*,b.age
from a
left join b
on a.id=b.id and a.sales= b.sales;
quit;
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