[英]Does SAS have a macro to format output of user writen DI transformation?
使用SAS數據集成(DI)Studio開發ETL程序時,您指定的每個轉換都有一個用戶界面,用於指定您創建的數據集(=表)的列及其類型,長度和格式。
當現有轉換無法完成工作並且需要用戶編寫代碼時,您應該使用點擊式界面盡可能多地執行此操作,因為
幸運的是,SAS向宏程序變量的用戶編寫轉換的程序員公開了輸出的格式
所以我經常在用戶編寫的轉換中編寫我的代碼
%macro format_output(data);
%do _col = 0 %to &&&data._col_count - 1;
length &&&data._col&_col._name &&&data._col&_col._type&&&data._col&_col._length;
%if %length(&&&data._col&_col._format) %then %do;
format &&&data._col&_col._name &&&data._col&_col._format;
%end;
%end;
%mend;
data &_OUTPUT1 (keep=&_OUTPUT1_keep);
%format_output(_OUTPUT1);
set &_INPUT1;
* actua code ;
run;
對於完整性:SAS公開輸出結構的方式如下
%let _OUTPUT1 = myLib.myTable;
%let _OUTPUT1_connect = ;
%let _OUTPUT1_engine = ;
%let _OUTPUT1_memtype = DATA;
%let _OUTPUT1_options = %nrquote();
%let _OUTPUT1_alter = %nrquote();
%let _OUTPUT1_path = %nrquote(/myTable_A5E5JYT6.C7000MOL%(WorkTable%));
%let _OUTPUT1_type = 1;
%let _OUTPUT1_label = %nrquote();
/* List of target columns to keep */
%let _OUTPUT1_keep = myID first_item <16 more items> last_item;
%let _OUTPUT1_col_count = 19;
%let _OUTPUT1_col0_name = myID;
%let _OUTPUT1_col0_table = myLib.myTable;
%let _OUTPUT1_col0_length = 8;
%let _OUTPUT1_col0_type = ;
%let _OUTPUT1_col0_format = 13.;
%let _OUTPUT1_col0_informat = 13.;
%let _OUTPUT1_col0_label = %nrquote(my ID);
%let _OUTPUT1_col0_input0 = myID;
%let _OUTPUT1_col0_exp = ;
%let _OUTPUT1_col0_input = myID;
%let _OUTPUT1_col0_input_count = 1;
%let _OUTPUT1_col1_name = first_item;
%let _OUTPUT1_col1_table = myLib.myTable;
%let _OUTPUT1_col1_length = 8;
%let _OUTPUT1_col1_type = $;
%let _OUTPUT1_col1_format = $CHAR8.;
%let _OUTPUT1_col1_informat = $CHAR8.;
%let _OUTPUT1_col1_label = %nrquote(first data item in my table);
%let _OUTPUT1_col1_input0 = first_item;
%let _OUTPUT1_col1_exp = ;
%let _OUTPUT1_col1_input = first_item;
%let _OUTPUT1_col1_input_count = 1;
<documentation about 16 more columns>
%let _OUTPUT1_col18_name = last_item;
%let _OUTPUT1_col18_table = myLib.myTable;
%let _OUTPUT1_col18_length = 16;
%let _OUTPUT1_col18_type = $;
%let _OUTPUT1_col18_format = $16.;
%let _OUTPUT1_col18_informat = $16.;
%let _OUTPUT1_col18_label = %nrquote(last data item in my table);
%let _OUTPUT1_col18_input0 = last_item;
%let _OUTPUT1_col18_exp = ;
%let _OUTPUT1_col18_input = last_item;
%let _OUTPUT1_col18_input_count = 1;
%let _OUTPUT1_filetype = WorkTable;
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