BookmarkSubscribeRSS Feed
Tomcaty
Obsidian | Level 7

Hello all, 

I am trying to replicate the attached SAS query in Impala. Basically, I want to pull all the observations from a dataset having a key variable "ID". Is there a way to replicate the same query using proc sql or may be in Impala. 

 

 

data want;
  if _n_=1 then do;
    declare hash m(dataset:"keyvariable");
    m.definekey('ID');
    m.definedone();
  end;
  set have; 
  if m.find()=0;
run;

 

Thanks for your help, 

Tom

2 REPLIES 2
ChrisNZ
Tourmaline | Level 20

How many values in the table keyvariable?

LinusH
Tourmaline | Level 20
Your code is written as you are working with data in SASWORK, but perhaps that's a simplification...?
Also, forgive me my ignorance in hash table syntax, but are you keeping records that doesn't have match?
If so, and 'have is already in Impala: make sure that your lookup table is there as well. Then use the SQL syntax WHERE id NOT IN (select id from keyvariable)
Data never sleeps

sas-innovate-2024.png

Available on demand!

Missed SAS Innovate Las Vegas? Watch all the action for free! View the keynotes, general sessions and 22 breakouts on demand.

 

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
  • 1087 views
  • 0 likes
  • 3 in conversation