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Mark7
Obsidian | Level 7

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?

1 ACCEPTED SOLUTION

Accepted Solutions
PaigeMiller
Diamond | Level 26

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

 

--
Paige Miller

View solution in original post

3 REPLIES 3
PaigeMiller
Diamond | Level 26

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

 

--
Paige Miller
Mark7
Obsidian | Level 7

Thank you! It works! i had to add %to

%do i =1  %to 20;

Mark7
Obsidian | Level 7
Works great, thank you

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