sas 4gl sql如何加入表

Question

我是编程新手，我必须做一些看起来像这样的任务： 例如，我有两个表：

表A

+-------+
| name  |
+-------+
| name1 |
| name2 |
| name3 |
+-------+

表B

+-------+-------+
| name  | tips  |
+-------+-------+
| name1 | tips1 |
| name1 | tips2 |
| name1 | tips3 |
| name2 | tips4 |
| name2 | tips5 |
| name3 | tips6 |
+-------+-------+

现在我想要一张这样的桌子：

表C

+-------+---------------------+
| name  |        tips         |
+-------+---------------------+
| name1 | tips1, tips2, tips3 |
| name2 | tips4, tips5        |
| name3 | tips6               |
+-------+---------------------+

Answer 1

data TableC;
    set TableB;
    by name;

    length t_tips $ 1000;
    retain t_tips;

    if (first.name) then
        do;
            t_tips=strip(tips);
        end;
    else
        do;
            t_tips=strip(tips) ||", "||strip(t_tips);
        end;

    if (last.name) then output;
    drop tips;
run;