BookmarkSubscribeRSS Feed
🔒 This topic is solved and locked. Need further help from the community? Please sign in and ask a new question.
mark_ph
Calcite | Level 5

Dear All,

I have the following two datasets:

data big;

     input Obs ID V1;

datalines;

1 1 1

2 2 1

3 2 2

4 3 1

5 3 2

6 3 3

7 4 1

8 4 2

9 4 3

10 5 1;

data small;

     input Obs ID;

datalines;

1 2

2 4

3 5;

I would like to obtain the dataset WANT, which contains all variables in the dataset BIG and all observations in dataset BIG with a value of the variable ID that occurs in the dataset SMALL. That is, I would like to obtain the following:

data want;

     input Obs ID V1;

datalines;

1 2 1

2 2 2

3 4 1

4 4 2

5 4 3

6 5 1;

I have managed to do it by using PROC SQL. This is my attempt:

proc sql;

create table want as

select big.*

from big, small

where big.id = small.id;

quit;

However, I also need to create a macro because I have many datasets BIG. Here, I have problems with syntax of PROC SQL inside a macro. The following code doesn't work.

%macro sampling(big);

proc sql;

create table want as

select &big.*

from &big., small

where &big.dt = small.dt;

quit;

proc append base=final data=want;

proc delete data=want;

run;

%mend;

Any help would be highly appreciated.

1 ACCEPTED SOLUTION

Accepted Solutions
Loko
Barite | Level 11

hello,

you have to address the variables from the table like this &big..* therefore you should corect these lines :

select &big..* --> &big..*

&big.dt --> &big..dt

View solution in original post

2 REPLIES 2
Loko
Barite | Level 11

hello,

you have to address the variables from the table like this &big..* therefore you should corect these lines :

select &big..* --> &big..*

&big.dt --> &big..dt

ballardw
Super User

If I read your description correctly you want a join not a Cartesian product

proc sql;

create table want as

select &big.*, small.id

from &big. left join small

on &big..dt = small.dt;

quit;

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

Click image to register for webinarClick image to register for webinar

Classroom Training Available!

Select SAS Training centers are offering in-person courses. View upcoming courses for:

View all other training opportunities.

Discussion stats
  • 2 replies
  • 4827 views
  • 0 likes
  • 3 in conversation