How do I change the value if the value contains a specific content?

[Therain]

Hello,

I use SAS 9.4 and I have a variable like this:

study_id

CS-02-0001

CS-02-0002

CS-02-0003

...

I hope to change it to CS-01-0001,CS-01-0002,... In other words, I want to change the part to CS-01 if the value includes CS-02. I think the codes should be something like: 

data want;
modify have;
if find(study_id,"CS-02") then ??;
run;

Does anyone can help me figure out the problem? Thank you!

[gauthamk28 · Accepted solution]

I hope this helps u
study_id=Tranwrd(study_id,'CS-02','CS-01');

[Therain]

Thank you so much! It works!

[gauthamk28]

you're welcome