ERROR: Subquery evaluated to more than one row in Proc SQL

Question

我有一个table-

Name    Job Group     Profession
John    Engineering    Yes
Shawn   Biology        Yes
Meg     Biology        No
Mike    Engineering    Yes   
Meg     Biology        Yes
John    Engineering    Yes
Mike    Biology        Yes
John    Engineering    Yes
Meg     Biology        Yes

我想计算与工作组对应的相同名称的职业（是或否）。所以我想要的输出是 -

输出

Name   Engineering  Biology 
John      2            1
Mike      1            1
Shawn                  1
Meg                    2

我尝试使用此代码但没有成功 -

CREATE TABLE Profile AS   
SELECT P.Name
        ,sum(P.Profession = "Yes") as Engineering_Yes
        ,sum(P.Profession = "Yes") as Engineering_No
        ,sum(P.Profession = "No") as Biology_Yes
        ,sum(P.Profession = "No") as Biology_Yes            
FROM Profile P

我尝试使用联合 select 添加作业组列，但没有成功

我是 Proc 的新手 SQL.I 试图搜索相同的示例，但找不到 Proc SQL 的示例。请帮忙。

Answer 1

好吧，你可以使用 GROUP BY:

CREATE TABLE Profile AS   
    SELECT P.Name,
           sum(case when P.Job_Group = 'Engineering' and P.Profession = 'Yes' and  then 1 else 0 end) as Engineering_Yes,
           sum(case when P.Job_Group = 'Engineering' and P.Profession = 'No' then 1 else 0 end) as Engineering_No,
           sum(case when P.Job_Group = 'Biology' and P.Profession = 'Yes' then 1 else 0 end) as Biology_Yes,
           sum(case when P.Job_Group = 'Biology' and P.Profession = 'No' then 1 else 0 end) as Biology_No           
    FROM Profile P
    GROUP BY P.Name;

Answer 2

select P.Name,
    count(case when "Job Group" = 'Engineering' then 1 end) as Engineering,
    count(case when "Job Group" = 'Biology' then 1 end) as Biology,
from Profile P
where Profession = 'Yes'
group by Name

ERROR: Subquery evaluated to more than one row in Proc SQL

ERROR: Subquery evaluated to more than one row in Proc SQL

sql

proc-sql