sql - 将列分组为一列

Question

我有一个选择

Select b.BookingID, c.CustName, c.CustEmail, c.CustAdd
from  Booking b
INNER JOIN Customer c ON b.CustID = c.CustID

Booking Id | CustName | CustEmail | CustAdd
1          | Wes Sk   | Wes@Gmail | 18 Blah 

如何合并列以生成

Booking Id | Cust
1          | Wes Sk Wes@Gmail 18 Blah 

Answer 1

这应该适用于 oracle 和 postgresql。对于 MSSQL，您可以使用“+”号代替“||”。

SELECT b.BookingID, c.CustName || ' ' || c.CustEmail || ' ' || c.CustAdd AS Cust
FROM Booking b
INNER JOIN Customer c ON b.CustID = c.CustID

Answer 2

您可以连接查询中的字段。

Select b.BookingID, c.CustName + ' ' + c.CustEmail + ' ' + c.CustAdd As Cust
from  Booking b
INNER JOIN Customer c ON b.CustID = c.CustID