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cxkev
Fluorite | Level 6

Goof Afternoon,

Does anyone know if it is possible to have a procedure or macro that will delete all empty datasets (ie dataset that has 0 obs) in the work library?

Many thanks.

cxkev

1 ACCEPTED SOLUTION

Accepted Solutions
Tom
Super User Tom
Super User

You can query DICTIONARY.TABLES to find the members with 0 obs.

You could use the information to generate DROP TABLE statements.

proc sql noprint ;

select 'drop table work.'||memname into :empties separated by ';'

from dictionary.tables

where libname='WORK' and nobs=0

;

&empties;

quit;

View solution in original post

5 REPLIES 5
Tom
Super User Tom
Super User

You can query DICTIONARY.TABLES to find the members with 0 obs.

You could use the information to generate DROP TABLE statements.

proc sql noprint ;

select 'drop table work.'||memname into :empties separated by ';'

from dictionary.tables

where libname='WORK' and nobs=0

;

&empties;

quit;

cxkev
Fluorite | Level 6

Thaks Tom - Do I need to code the macro &empties, do you know how I would go about that?

Just copied and pasted your code and got "apparent symbolic reference EMPTIES not resolved"

Apols if I'm missing somethign obvious here.

Thanks,

cxkev


cxkev
Fluorite | Level 6

Actually Tom - I can go from here - I was not aware of DICTIONARY.TABLES before but now I have that I know where to go.

Thanks very much for your help.

cxkev

Tom
Super User Tom
Super User

Add this line before the SELECT statement to clear the macro variable and make sure it is defined and empty even when there are no results returned from the query.

%let empties=;

cxkev
Fluorite | Level 6

Thanks Tom - That's worked a treat!

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