Call execute- is a function that can be used if you want to run some code based on the values of a dataset.

Mixing DATA and PROC Steps.

You can't mix DATA and PROC steps. Each SAS step must complete before the next step begins.
For example, this program is illegal:

DATA _NULL_;
SET SALES END=NOMORE;
TOTAL + AMOUNT;
IF NOMORE;
IF TOTAL < 1000000 THEN DO;
PROC MEANS DATA=SALES;
CLASS STATE;
END;
ELSE DO;
PROC MEANS DATA=SALES;
CLASS STATE YEAR;
END;

However, CALL EXECUTE lets you designate the PROC and CLASS statements as statements to be added once the DATA step completes. This approach works, and requires minimal modification to the original:

DATA _NULL_;
SET SALES END=NOMORE;
TOTAL + AMOUNT;
IF NOMORE;
IF TOTAL < 1000000 THEN DO;
CALL EXECUTE
('PROC MEANS DATA=SALES;
CLASS STATE;');
END;
ELSE DO;
CALL EXECUTE
('PROC MEANS DATA=SALES;
CLASS STATE YEAR;');
END;
RUN;

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