topic FUNCTION TO CHECK FIELD IS CHAR OR NUMERIC USING PROC SQL in SAS Procedures

FUNCTION TO CHECK FIELD IS CHAR OR NUMERIC USING PROC SQL

siddharthpeesary — Tue, 13 Oct 2015 19:54:10 GMT

N stands for "Numeric" and C stands for 'Character'

(CASE
WHEN VTYPE(A.&FIRST)='N' AND A.&FIRST IS NOT NULL AND B.&SECOND IS NULL THEN A.&FIRST ELSE 0 END) AS NUMERIC_WRONG,
(CASE
WHEN VTYPE(A.&FIRST)='C' AND A.&FIRST IS NOT NULL AND B.&SECOND IS NULL THEN A.&FIRST ELSE '' END) AS CHARACTER_WRONG,

I have to seperate the buckets for character and numeric values in NUMERIC_WRONG and CHARACTER_WRONG for one field..

The VTYPE function is working for DATA STEP but not for proc SQL. can any one tell me there is any function for proc sql which works same as VTYPE.

Your help is much appreciated. Thanks

Re: FUNCTION TO CHECK FIELD IS CHAR OR NUMERIC USING PROC SQL

Patrick — Tue, 13 Oct 2015 21:21:31 GMT

Your code snippet looks to me like you're overcomplicating something and that there must be a better solution. But then it doesn't show enough of what you have and want to achieve to really know.

Below would work in a SQL - doesn't mean I recommend doing it this way...


proc sql;
  select 
    (select type from dictionary.columns where libname='SASHELP' and memname='CLASS' and upcase(name)='SEX') as vtype_name,
    case
      when
        (select type from dictionary.columns where libname='SASHELP' and memname='CLASS' and upcase(name)='AGE') = 'num' then '1'
        else '0'
      end
    as vtype_ind_age
  from sashelp.class
  ;
quit;