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;
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