PROC SURVEYSELECT DATA=B OUT=C(DROP=SelectionProb SamplingWeight) METHOD=SRS SEED=100 SAMPSIZE=1;
STRATA FLAG;
RUN;
PROC PRINT DATA=C;
VAR CERIDNUM;
RUN;
PROC SURVEYSELECT DATA=B OUT=C(DROP=SelectionProb SamplingWeight) METHOD=SRS SEED=100 SAMPSIZE=1;
STRATA FLAG;
RUN;
PROC PRINT DATA=C;
VAR CERIDNUM;
RUN;
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