【sas sql proc】proc sql; quit;

proc sql 是以quit结束，而非run

 1 proc print data=mysas.mmsone (obs=10);
 2 run;
 3 proc sql;
 4     title 'this is an example of proc sql';
 5     select sum(wangnei) as a,date
 6     from mysas.mmsone
 7     where date<200904
 8     group by date
 9     having date in(200901,200902)
10     order by a desc;
11 quit;

注意having的用法。

稍微改进一下，可以只显示部分结果。

 1 proc sql outobs=5;
 2     title 'this is an example of sql and outobs';
 3     select wangnei,date
 4     from mysas.mmsone
 5     where date<200905
 6     order by wangnei desc;
 7 quit;
 8 proc sql;
 9     describe table mysas.mmsone;
10 quit;

注意 describe table 和proc contents 功能类似。

 

1 proc sql outobs=5;
2     title 'this is an example of sql and outobs';
3     select wangnei,date,'test','测试'
4     from mysas.mmsone
5     where date<200905
6     order by wangnei desc;
7 quit;

在sql查询中可以直接加入文本在每一行中，测试显示，sas9.2 英文环境下不支持中文。