1.select+from子句 原数据集:SASHELP.CLASS(SAS自带数据集) 代码输入: /*整句话的意思是,from从SASHELP.CLASS表中查询输出select这几个变量:*代表所有原数据集变量,后面的都是新增列(as后面是新增列的字段名)No1、NO2、Height_Square和BMI,输出到表CLASS中去。distinct 表示删除重复的观测。COUNT(*) as no1...
---*;proc sql noprint;%doi=1%to&j.;%if&i.=1%then%do;create table sm_ds_&i.(where=(fg&i.=N))asselect&&var&i.,fg&i.,max(fg&i.)asNfrom pgm_temp1 group by&&var&i.;%end;%if&i.=2%then%do;create table sm_ds_&i.(where=(fg&i.=N))asselect&var1.,&&var&i.,fg&i.,...
DESCRIBETABLECONSTRAINTStable-name-1<, ...table-name-n>; 3:插入行数据,这里给出两种常用方式 所有列的插入,都在表末尾 procsql;insertintowork.newtable (item,qty)/*规定要插入的列,不写则默认为所有列*/values('FLUTE',6)values('VIOLIN',3); quit; 4:删除行 DELETEFROMtable-name<WHEREexpression>...
proc sql; create table temp2 as select * from sashelp.air(firstobs=n obs=n/obs=n); quit; /*firstobs.n < obs.n*/ 方法三: proc sql inobs=n; create table temp3 as select * from sashelp.air; quit; 方法四: proc sql outobs=n; create t...
from->on->join->where->group by->sum、count、max、avg->having->select->distinct->order by->limit WHERE从句的操作在SELECT从句前,HAVING从句的执行在SELECT与GROUP BY从句之后。 SQL 结构化查询语言 (Structured Query Language) 1. SQL语言在SAS中是通过PROC SQL 来实现的。可以实现: ...
proc sql noprint;create table test5asselect usubjid,sex,agefromadam.adslasa whereexists(select usubjidfromadam.adaeasb where a.usubjid=b.usubjid);quit; ↑向右滑动查看全部代码↑ 上述代码中,子查询语句 select usubjid from adam.adae as b where a.usubjid = b.usubjid 引用了外部查询的 ...
/*Distinct 可以起到选择变量的去重的作用*/proc sql noprint;create table report_asselect distinct*from;quit; 在来看看另外一个过程步,Proc Sort过程步,这个是一个排序的过程步,当然这个过程步也能去重...也是特别好用的。 代码语言:javascript 代码运行次数:0 ...
create tablebbas select* fromsashelp.vmember whereCOMPRESS(libname,,'d')='EXCEL' ; quit; datacc; setbb; code = 'proc import out= '||cats(libname,'_',substr(memname,5))|| ' datafile ="'||strip(Path)||'" '|| 'dbms = excel;'|| ...
文章Analytics for all, all in one placeFrom Python to R and SAS to Spark, bring all of your analytics packages together with one trusted platform for analytics governance. 文章Keeping an open mind about open analyticsSome of the smartest data science teams are using SAS alongside open source ...
登录后复制createtablethree4asselect*fromoneleftjointwoonone.x=two.x; quit; /结果如下:/ (2)右连接(右表变量顺序保持不变 ) 右连接会将所有满足ON条件的行进行连接,并会额外加上左表中所有不满足条件的行。 proc sql; 登录后复制createtablethree5asselect*fromonerightjointwoonone.x=two.x; ...