洛神赋 发表于 2010-10-25 16:58
有时候清空work数据,也可以调用~
data test;
set _null_
Yes, indeed it does the job.
15 data t1 t2 t3;
16 x=1;
17 run;
NOTE: The data set WORK.T1 has 1 observations and 1 variables.
NOTE: The data set WORK.T2 has 1 observations and 1 variables.
NOTE: The data set WORK.T3 has 1 observations and 1 variables.
NOTE: DATA statement used (Total process time):
real time 0.01 seconds
cpu time 0.01 seconds
18
19 data t1 t2 t3;
20 set _null_;
21 run;
NOTE: The data set WORK.T1 has 0 observations and 0 variables.
NOTE: The data set WORK.T2 has 0 observations and 0 variables.
NOTE: The data set WORK.T3 has 0 observations and 0 variables.
NOTE: DATA statement used (Total process time):
real time 0.01 seconds
cpu time 0.01 seconds