保持列具有特定格式

Question

我只想保留具有特定格式的列。例如，sashelp.cars有2列格式为DOLLAR的列-MSRP和INVOICE。我只想保留这两列。任何帮助表示赞赏！

Answer 1

您可以使用dictionary.columns来做到这一点。

 proc sql ;
    select name into :keepcols SEPARATED by " " from dictionary.columns
    where libname = "SASHELP"
     and memname = "CARS"
     and format = "DOLLAR8.";

Edit1：您可以使用“ DOLLAR％”之类的格式来查找所有采用美元格式的文件；

  proc sql ;
     select name into :keepcols SEPARATED by " " from dictionary.columns
     where libname = "SASHELP"
    and memname = "CARS"
     and format like "DOLLAR%";



      data cars;
        set sashelp.cars(keep = &keepcols);
     run;