Problem with Concat function

[avatar]

I am trying to add  zero for  patient number if the length is than 7

 following code gives error

data fix_ptnt;

set FCR_ADUIT_REPORT;

format patient_id $20.;

if length(PATIENT_SRC_NO) = 6 then patient_id = '0'||strip(PATIENT_SRC_NO);

run;

can you please help?

thanks,

[PeterClemmensen]

If you simply want to pad the ID with zeros so the value has 7 digits, then simply do

data have;
input patient_id $;
datalines;
1
11
111
1111
11111
111111
;

data want;
   set have;
   new_patient_id=put(input(patient_id, 8.), z7.);
run;

[Kc2]

Right now the 0 gets only added if the length equals 6. 

Try 

if length(PATIENT_SRC_NO) < 7  then patient_id = '0'||strip(PATIENT_SRC_NO);

else patient_id=strip(PATIENT_SRC_NO);

run;

[Tom]

What error does it give?

[avatar]

 oh! I  found out the error for previous step . not for my code. it is working fine now t

Thank you all for your replies. All worked fine!