Question

我正在使用SAS E.G. 7.1

我有以下代码：

data time_dim_monthly;

    do i = 0 to 200;
        index_no = i;
        year_date = year(intnx('month','01JAN2008'd,i));
        month_date = month(intnx('month','01JAN2008'd,i));
        SOM = put(intnx('month', '01JAN2008'd, i, 'b'),date11.) ; 
        EOM = put(intnx('month', '01JAN2008'd, i, 'e'),date11.) ; 
        days_in_month = INTCK('day',intnx('month', '01JAN2008'd, i, 'b'),
                        intnx('month', '01JAN2008'd, i, 'e')); 
        output;
    end;
run;

接着是

proc sql;
    create table calendar as 
        select year_date, month_date, index_no, put(today(),date11.) as todays_dt, som, eom
            from time_dim_monthly
                where put(today(),date11.) between som and eom
/*or datepart((INTNX('month',today(),-1)) between som and eom)*/
        order by index_no
                ;
quit;

输出如下：

year_date   month_date  index_no    todays_dt   SOM EOM
2008    10  9   31-MAY-2017 01-OCT-2008 31-OCT-2008
2009    10  21  31-MAY-2017 01-OCT-2009 31-OCT-2009
2010    10  33  31-MAY-2017 01-OCT-2010 31-OCT-2010
2011    10  45  31-MAY-2017 01-OCT-2011 31-OCT-2011
2012    10  57  31-MAY-2017 01-OCT-2012 31-OCT-2012
2013    10  69  31-MAY-2017 01-OCT-2013 31-OCT-2013
2014    10  81  31-MAY-2017 01-OCT-2014 31-OCT-2014
2015    10  93  31-MAY-2017 01-OCT-2015 31-OCT-2015
2016    10  105 31-MAY-2017 01-OCT-2016 31-OCT-2016
2017    5   112 31-MAY-2017 01-MAY-2017 31-MAY-2017
2017    10  117 31-MAY-2017 01-OCT-2017 31-OCT-2017
2018    5   124 31-MAY-2017 01-MAY-2018 31-MAY-2018
2018    10  129 31-MAY-2017 01-OCT-2018 31-OCT-2018
2019    5   136 31-MAY-2017 01-MAY-2019 31-MAY-2019
2019    10  141 31-MAY-2017 01-OCT-2019 31-OCT-2019
2020    5   148 31-MAY-2017 01-MAY-2020 31-MAY-2020
2020    10  153 31-MAY-2017 01-OCT-2020 31-OCT-2020
2021    5   160 31-MAY-2017 01-MAY-2021 31-MAY-2021
2021    10  165 31-MAY-2017 01-OCT-2021 31-OCT-2021
2022    5   172 31-MAY-2017 01-MAY-2022 31-MAY-2022
2022    10  177 31-MAY-2017 01-OCT-2022 31-OCT-2022
2023    5   184 31-MAY-2017 01-MAY-2023 31-MAY-2023
2023    10  189 31-MAY-2017 01-OCT-2023 31-OCT-2023
2024    5   196 31-MAY-2017 01-MAY-2024 31-MAY-2024

虽然我预计它只会给我一行：

2017 5 112 31-MAY-2017 01-MAY-2017 31-MAY-2017

非常感谢帮助理解为什么会这样。

谢谢

Answer 1

这是你的错误：

SOM = put(intnx('month', '01JAN2008'd, i, 'b'),date11.) ; 
EOM = put(intnx('month', '01JAN2008'd, i, 'e'),date11.) ; 
where put(today(),date11.) between som and eom

put创建一个字符变量。除非你真的知道自己在做什么（它将按字母顺序进行比较），否则你不应该将between与字符变量一起使用。

使用数字变量。摆脱put。而是使用format语句使变量看起来不错，但仍然是数字。

SOM = intnx('month', '01JAN2008'd, i, 'b') ; 
EOM = intnx('month', '01JAN2008'd, i, 'e') ; 
format som eom date11.;

后

where today() between som and eom

日期和之间的陈述

1 个答案: