Hi,
I have over 400 tables named similair E_PROD_2002_01, E_PROD_2002_02, .... E_PROD_2002_20, etc. I need to alter a column in every table, to change length char from 10 to 15. I don't want to run every single code:
proc sql;
alter table dds.E_PROD_2002_01
modify name char(15);
quit;
Is there an easier way?
A macro loop would work here. Since you state there are 400 such tables, but only show 20 table names, and I do not know what the full 400 data set names would look like, I provide code for those 20 tables. (Macro will not work for 400 without modification)
UNTESTED CODE
%macro dothis;
%do i =1 to 20;
proc sql;
alter table dds.E_PROD_2002_%sysfunc(putn(&i,z2.))
modify name char(15);
quit;
%end;
%mend;
%dothis
A macro loop would work here. Since you state there are 400 such tables, but only show 20 table names, and I do not know what the full 400 data set names would look like, I provide code for those 20 tables. (Macro will not work for 400 without modification)
UNTESTED CODE
%macro dothis;
%do i =1 to 20;
proc sql;
alter table dds.E_PROD_2002_%sysfunc(putn(&i,z2.))
modify name char(15);
quit;
%end;
%mend;
%dothis
Thank you! It works! i had to add %to
%do i =1 %to 20;
It's finally time to hack! Remember to visit the SAS Hacker's Hub regularly for news and updates.
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.
Ready to level-up your skills? Choose your own adventure.