JOINING Two Tables together in SAS - sas

Question

I am working on the this SAS code and would need assistance with joining the two tables below. I am getting errors while trying to join the two tables.
Requirement: i. Left Join Table B to Table A
Table A:
PROC SQL;
create table stand as select distinct
put(datepart(Max(a.REPORT_DATE)),Date9.) as M_Date
, a.BUSINESS_GROUP as PORTF_LEVEL1
, A.SPLIT as PORTF_LEv2
, Count(distinct a.Report_Date) as Number_of_Days
, (B.TOTAL_BREACH/Count(distinct a.Report_Date))*100 as FREQ
, A.MINIMUM_ACCEPTABLE_COUNT
, A.MAX_COUNT
, (case WHEN (B.TOTAL_BREACH/Count(distinct a.Report_Date)) * 100 LT MIN_COUNT
THEN 'TRUE' ELSE 'FALSE' END) as NUMBER__UNDER
, (case WHEN (B.TOTAL_BREACH/Count(distinct a.Report_Date)) * 100 GT MAX_COUNT THEN 'TRUE' ELSE 'FALSE' END) as NUMBER__OVER
from temp a
INNER join
( select BUSINESS_GROUP as PORTF_LEVEL1
,SPLIT AS PORTF_LEv2
,Count(distinct c.Report_Date) as Number_of_Days
from temp c
Inner join temp2 d
on c.Report_Date=d.Report_Date
WHERE &Alert and TENOR = '+'
and datepart(c.REPORT_DATE) ge '31-APR-21'd
and datepart(c.REPORT_DATE) le '31-APR-22'd
Group by BUSINESS_GROUP, SPLIT
)B
on a.BUSINESS_GROUP = b.PORTF_LEVEL1
AND a.SPLIT = b.PORTF_LEVEL2
INNER JOIN temp2 e
on a.REPORT_DATE = e.REPORT_DATE
where &Alert and TENOR = '+'
and datepart(a.REPORT_DATE) ge '31-APR-21'd
and datepart(a.REPORT_DATE) le '31-APR-22'd
Group by Business_GROUP, SPLIT
;
QUIT;
Table B:
In the table B, i am trying to find the median of the variable Data_M. The code seems to be okay. I only need assistance joining the Table B to table A above.
Proc sql outobs=1; create table median_dt1 as select distinct put(datepart(max(REPORT_DATE)), date9.) as M_Date , median(Data_M) as median_data from transp
WHERE datepart(REPORT_DATE) ge '01-APR-22'd and datepart(REPORT_DATE) le '31-APR-22'd group by BUSINESS_GROUP order by Report_Date Desc; quit;
Thank you in advance!
sas

Answer 1

from temp a
INNER join
( select BUSINESS_GROUP as PORTF_LEVEL1
,SPLIT AS PORTF_LEv2
,Count(distinct c.Report_Date) as Number_of_Days
from temp c
Inner join temp2 d
on c.Report_Date=d.Report_Date
WHERE &Alert and TENOR = '+'
and datepart(c.REPORT_DATE) ge '31-APR-21'd
and datepart(c.REPORT_DATE) le '31-APR-22'd
Group by BUSINESS_GROUP, SPLIT
)B
on a.BUSINESS_GROUP = b.PORTF_LEVEL1
AND a.SPLIT = b.PORTF_LEVEL2
You're trying to join on b.PORTF_LEVEL2. However, that column doesn't exist in B. The column "PORTF_LEV2" exists, though. Try that?
If that doesn't resolve the issue, please paste the complete error message that you're receiving.