how to write code for left outer join in SAs using datastep?
Answers were Sorted based on User's Feedback
Answer / uma
first sort these datasets by common variable DEPT_ID,Then
use the following:
data left_join;
merge emp (in=a) dept (in=b);
by dept_id;
if a then output;
run;
Is This Answer Correct ? | 22 Yes | 2 No |
Answer / aniruddha
Data left_outer;
merge emp(in=a) dept(in=b);
by deptno;
if a=1 and b=0;
run;
Is This Answer Correct ? | 22 Yes | 8 No |
Answer / lakshmi
data left_join;
merge data1(in=a) data2(in=b);
by subjid;
if a;
run;
Is This Answer Correct ? | 10 Yes | 3 No |
Answer / jbhjhj
dnt use set it wnt work.
use merge with in statements as above.
Is This Answer Correct ? | 8 Yes | 6 No |
Answer / venkatesh
if you use x=1 and y=0
you must use set statement also
try this
data a b;
merge one two;
by id;
if x=1 and y=1 then output a;
if x=1 and y=0 then output b;
data new;
set a b;
run;
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / raghava
proc sql;
select *
from one left join two
on one.X=two.X;
quit;
The above is code for lefjoin.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / vk
Data Left_outer;
set data1(in=x) data2(in=y);
if x=0 and y=1;
run;
Is This Answer Correct ? | 9 Yes | 12 No |
Answer / pnprasad
There is no such Inner & Left Joins. In SAS only one join
i.e Right Join. If you want Left Join you have to use the
data set in the second place. For example: D1 D2 are the
data sets for D2 you want to make, UPDATE D1 D2;
Is This Answer Correct ? | 1 Yes | 22 No |
In which case u go for libname and in which case u go for proc sql pass thru facilit diff?
What is auto call macro and how to create a auto call macro? What is the use of it? How to use it in sas with macros? : sas-macro
Mention the validation tools used in SAS?
HOW DO WE CREATE A SAS STORED PROCESS IN SAS EG ?
how do the in= variables improve the capability of a merge? : Sas programming
WHAT DOES A SAS SPECIFICATION DOCUMENT SDS CONTAIN ?
Hi Friends, Am Priya,new to your forum. am looking for Interview questions on SAS Platform Administration. I searched everywhere but I couldn't find them,please can anyone help me with complete interview questions normally everyone will face in the interviews on SAS Administration. am really facing problems in the interviews,am not able to answer any of their questions. I would really appreciate all your help if you can email the complete Interview Questions to priyafeb84@gmail.com Kindly awaiting for your reply with eager
what is the basic structure sas administrator? : Sas-administrator
Explain how you can debug and test your SAS program?
what are different type of sas servers ? On which server does the sas code execute ?
What SAS statements would you code to read an external raw data file to a DATA step?
How to include or exclude specific variables in a data set?