sql - 如何通过存储过程获取多条记录

Question

select 
   t.Sno, t.childid,
   (select customername as n from customerprofile c where c.cusid = t.childid) as name,t.earnedmoney as commission,
   (select p.bookingamt from propertyregistration p, customerprofile c where p.applicationno = c.applicationno and c.cusid = t.childid) as bookingamt,
   (select p.totalarea from propertyregistration p, customerprofile c where p.applicationno = c.applicationno and c.cusid = t.childid) as totalarea ,
   (select childid from tbl_level where parentid = t.childid) as child
from 
   tbl_level t 
where 
   parentid = @id 

这是程序，其中

(select childid from tbl_level where parentid = t.childid) as child 

如果有单条记录，它很容易获取

有多个记录，它抛出一个错误，子查询返回多个值

请帮助我如何检索多条记录

Answer 1

尝试这个：

SELECT t.Sno, t.childid, c.customername AS NAME, t.earnedmoney AS commission, 
       p.bookingamt AS bookingamt, p.totalarea AS totalarea, 
       MAX(STUFF(A.childid, 1, 1, '')) AS childs
FROM tbl_level t 
LEFT JOIN customerprofile c ON c.cusid = t.childid
LEFT JOIN propertyregistration p ON p.applicationno = c.applicationno 
CROSS APPLY(SELECT ' ' + t1.childid FROM tbl_level t1 WHERE t1.parentid = t.childid FOR XML PATH('')) AS A (childid)
WHERE parentid = @id 
GROUP BY t.Sno, t.childid, c.customername, t.earnedmoney, p.bookingamt, p.totalarea

从所有子 ID 中获取客户名称：

SELECT t.Sno, t.childid, c.customername AS NAME, t.earnedmoney AS commission, 
       p.bookingamt AS bookingamt, p.totalarea AS totalarea, 
       MAX(STUFF(A.customerNames, 1, 1, '')) AS childs
FROM tbl_level t 
LEFT JOIN customerprofile c ON c.cusid = t.childid
LEFT JOIN propertyregistration p ON p.applicationno = c.applicationno 
CROSS APPLY(SELECT ',' + c1.customername 
            FROM tbl_level t1 
            INNER JOIN customerprofile c1 ON c1.cusid = t1.childid
            WHERE t1.parentid = t.childid 
            FOR XML PATH('')
           ) AS A (customerNames)
WHERE parentid = @id 
GROUP BY t.Sno, t.childid, c.customername, t.earnedmoney, p.bookingamt, p.totalarea