topic Re: New to SAS for school and am having difficulty with a provided code. in New SAS User

New to SAS for school and am having difficulty with a provided code.

ericv51389 — Fri, 20 Oct 2023 00:47:17 GMT

Hello everyone,

I am new to SAS for my doctorate program and using proc sql, I am needing to merge the following data sets:

ep_provider_paid_ehr
National_downloadable_file
zip_to_cbsa

All three are csv files that have been imported into SAS and the file names changed to the respective names above in my libraries -> work from import.

This is the code that has been given, but it keeps erroring out and I cannot figure out why after multiple attempts, google, youtube, etc:

proc sql;
SELECT DISTINCT

national_downloadable_file.group_practice_PAC_id,

national_downloadable_file.number_of_group_practice_members,

ep_provider_paid_ehr.provider_npi,

zip_to_cbsa.cbsa

FROM

national_downloadable_file

JOIN

provider_intersect ON

national_downloadable_file.national_downloadable_file_id =

provider_intersect.national_downloadable_file_id

LEFT JOIN

ep_provider_paid_ehr ON

provider_intersect.ep_provider_paid_ehr_id =

ep_provider_paid_ehr.ep_provider_paid_ehr_id

JOIN

zipcode_table ON

national_downloadable_file.zipcode =

zipcode_table.zipcode

LEFT JOIN

zip_to_cbsa ON

zipcode_table.zipcode = zip_to_cbsa.zipcode

WHERE national_downloadable_file.group_practice_PAC_id<>'NA';

Here is the error that keeps occurring:

ERROR: File WORK.PROVIDER_INTERSECT.DATA does not exist.

ERROR: File WORK.ZIPCODE_TABLE.DATA does not exist.

Any help would be greatly appreciated.

Thanks!

Re: New to SAS for school and am having difficulty with a provided code.

Tom — Fri, 20 Oct 2023 01:32:22 GMT

It does not look like the names in your code match the names at the start of your posting.

For example provider_intersect is not in the list

ep_provider_paid_ehr
National_downloadable_file
zip_to_cbsa

you provided.

Also if you imported the CSV files into WORK datasets and then ended that SAS session and started a new one the WORK datasets will be gone. WORK files are removed when the SAS session ends.

You will need to re-import them again before you can use them in SQL code.

Re: New to SAS for school and am having difficulty with a provided code.

ericv51389 — Fri, 20 Oct 2023 16:01:59 GMT

That is what I was thinking and we were not provided with another data base and there are no columns in the ones mentioned that are provider-intersect.

Will try playing around with the code some more and see if I can figure out what is going on with all information I was provided.

Have also reached out to the professor, but have not heard anything back yet.

Re: New to SAS for school and am having difficulty with a provided code.

ballardw — Fri, 20 Oct 2023 16:27:55 GMT

A couple of suggestions: first peculiar to this forum software, you should paste code, Log or text data examples, into a text box opened on the forum using the </> icon that appears above the message window. The forum main message windows reformat pasted text and may result in removing, replacing or inserting characters such that when pasted into a code editor will not run correctly. See the box below.

Second is an SQL "trick" to reduce typing AND make code a little more flexible: table alias. You can provide a much shorter name to reference your tables as shown below with the <dataset name> as <alias>. Then you don't have to type long data set names constantly. Also you can test/run code with a different data set and only have to change the name in one place where the Alias is set. I highlighted one example for the first data set From. The "as" is actually optional in many SQL implementations but I like to see it so it is clear what T1 (a semi-traditional alias for "Table One"). I could replace the "national_downloadable_file" with "testset1" for example and no other code would need to change. This is very useful for testing a small set of values (possibly of particular interest for some reason) or just to verify that syntax works on a small set before turning it loose on larger data.

proc sql;
   SELECT DISTINCT
      T1.group_practice_PAC_id,
      T1.number_of_group_practice_members,
      T3.provider_npi,
      T5.cbsa
   FROM
      national_downloadable_file as T1
   JOIN
      provider_intersect as T2 ON
      T1.national_downloadable_file_id =
      T2.national_downloadable_file_id
   LEFT JOIN
      ep_provider_paid_ehr as T3 ON
      T2.ep_provider_paid_ehr_id =
      T3.ep_provider_paid_ehr_id
   JOIN
      zipcode_table as T4 ON
      T1.zipcode =
      T4.zipcode
   LEFT JOIN
      zip_to_cbsa as T5 ON
      T4.zipcode = T5.zipcode
   WHERE T1.group_practice_PAC_id<>'NA'
   ;
quit;

As a side-effect of setting aliases in your code it become obvious that your code uses 5 separate tables and you apparently only have 3. So anything using those extra tables would have to "go away" OR provide the data sets.