2013-02-13 93 views
0

這裏是宏我跑....如何比較宏中的日期值?

%macro ControlLoop(ds); 
      %global dset nvars nobs; 
      %let dset=&ds; 
      /* Open data set passed as the macro parameter */ 
      %let dsid = %sysfunc(open(&dset)); 
     /* If the data set exists, then check the number of obs ,,,then close the data set */ 
     %if &dsid %then %do; 
       %If %sysfunc(attrn(&dsid,nobs))>0 %THEN %DO;; 
         %local dsid cols rctotal ; 
         %let dsid = %sysfunc(open(&DS));  
         %let cols=%sysfunc(attrn(&dsid, nvars)); 
        %do %while (%sysfunc(fetch(&dsid)) = 0); /* outer loop across rows*/ 
             /*0:Success,>0:NoSuccess,<0:RowLocked,-1:eof reach*/ 

     %If fmt_start_dt<=&sysdate9 and fmt_end_dt>=sysdate9 %then %Do; 
          %do i = 1 %to &cols; 
     %local v t; /*To get var names and types using 
       varname and vartype functions in next step*/ 
           %let v=%sysfunc(varname(&dsid,&i)); /*gets var names*/ 
           %let t = %sysfunc(vartype(&dsid, &i)); /*gets variable type*/ 
           %let &v = %sysfunc(getvar&t(&dsid, &i));/*To get Var values Using 
                  GetvarC or GetvarN functions based on var data type*/ 
          %end; 
          %CreateFormat(dsn=&dsn, Label=&Label, Start=&Start, fmtName=&fmtName, type=&type); 
         %END; 
         %Else %put ###*****Format Expired*****; 
        %END; 
       %END; 
       %else %put ###*****Data set &dset has 0 rows in it.*****; 

       %let rc = %sysfunc(close(&dsid)); 
      %end; 
     %else %put ###*****open for data set &dset failed - %sysfunc(sysmsg()).*****; 
     %mend ControlLoop; 

     %ControlLoop(format_control); 

FOrmat_Control數據:

DSN :$12. Label :$15. Start :$15. fmtName :$8. type :$3. fmt_Start_dt :mmddyy. fmt_End_dt :mmddyy.; 
ssin.prd prd_nm prd_id mealnm 'n' 01/01/2013 12/31/9999 
ssin.prd prd_id prd_nm mealid 'c' 01/01/2013 12/31/9999 
ssin.fac fac_nm onesrc_fac_id fac1SRnm 'n' 01/01/2013 12/31/9999 
ssin.fac fac_nm D3_fac_id facD3nm 'n' 01/01/2013 12/31/9999 
ssin.fac onesrc_fac_id D3_fac_id facD31SR 'n' 01/01/2013 02/01/2012 
oper.wrkgrp wrkgrp_nm wrkgrp_id grpnm 'n' 01/01/2013 12/31/9999 

我怎麼能比較fmt_Start_dt和fmt_end_dt與SYSDATE? 我在代碼中嘗試了類似%If fmt_start_dt<=&sysdate9 and fmt_end_dt>=sysdate9 %then %Do;的東西,但值不在循環中拾取....任何想法? 在此先感謝....

回答

1

我不是很確定你想要什麼,但我認爲這可能工作:

%if &fmt_start_dt <= %sysfunc(today()) and &fmt_end_dt >= %sysfunc(today()) 

中的抓取功能將數據集的變量複製到宏變量,所以你需要以「&」號引用它們。此外,您應該使用TODAY()函數而不是SYSDATE9宏變量。

+0

,我試過你的代碼,但這裏是問題... fmt_start_dt和fmt_end_dt都是date9格式...當我嘗試你的代碼時,我得到以下錯誤...警告:明顯的符號引用FMT_START_DT沒有解決。 錯誤:在需要數字操作數的%EVAL函數或%IF條件中找到字符操作數。條件是: &fmt_start_dt <=%sysfunc(today())和&fmt_end_dt> =%sysfunc(today()) 警告:明顯的符號引用FMT_END_DT未解決。 錯誤:宏CONTROLLOOP將停止執行。 – 2013-02-14 14:35:30

+0

它通過將日期條件循環移動到內部循環後工作正常... – 2013-02-14 14:51:36