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

This is a simple question :

I want to create a table selecting distinct observations  from an existing table based on combination of three columns but I want to retain some more variables from the original table.

something like :

proc sql;

    CREATE table want as

    SELECT DISTINCT on (var1, var2, var3) (keep = var1, var2, var3, var6, var7, var8)

    FROM have

    ORDER by var1;

quit;

var6, var7 and var8 contain the values I want to keep in my output table. what is the correct format for doing this ?

thanks,

Nikhil

1 ACCEPTED SOLUTION

Accepted Solutions
ballardw
Super User

Depending on how you created the summaries I might be tempted to go back a step or two as it would seem that you went to extra work to get the summaries attached to the VAR1, 2 and 3 list.

Since apparently the value for VAR6 etc are duplicated then the simplest SQL solution would look something like:

proc sql;

     create table want as

     select distinct var1,var2,var3, var6,var7,var8

     from have;

quit;

View solution in original post

5 REPLIES 5
ballardw
Super User

Your looking at a join but if VAR1, 2 and 3 are repeated WHICH values of VAR6, 7 and 8 do you want?

Or possibly

proc sort data=have out= want nodupkey, by var1 var2 var3;run;

which will have some value for var6, 7 and 8 but which ones?

ngnikhilgoyal
Calcite | Level 5

They way I have summarized them, the vals in var6, var7 and var8 are all same for distinct combinations of var1, var2 and var3. So I don't care which value it retains . .

ballardw
Super User

Depending on how you created the summaries I might be tempted to go back a step or two as it would seem that you went to extra work to get the summaries attached to the VAR1, 2 and 3 list.

Since apparently the value for VAR6 etc are duplicated then the simplest SQL solution would look something like:

proc sql;

     create table want as

     select distinct var1,var2,var3, var6,var7,var8

     from have;

quit;

ngnikhilgoyal
Calcite | Level 5

Yes you are right. I am wasting computing resources doing the same calculations again & again. I'll change the order of sub-setting & calculations.

ngnikhilgoyal
Calcite | Level 5

Okay it was a silly question I think. I've just chosen all the columns i want to keep in the select distinct statement.

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
  • 5 replies
  • 62813 views
  • 3 likes
  • 2 in conversation