tsql - 在 SQL 中将两个列合二为一

Question

我有两列，其中一个是外国 ID，我怎样才能将它们连接成一列？

例子：

StateID = 1
Area = "Bronx"

成为：

New York - Bronx

编辑：

Table1 = [Address] has two columns, (ID, Name)
Table2 = [Requests] has many columns including (Area, StateID)

Answer 1

用于+连接列：

SELECT a.Name + ' - ' + r.Area As StateAndArea
FROM dbo.Requests r INNER JOIN dbo.Address a
    ON r.StateID = a.ID
ORDER BY StateAndArea -- ( alias can be used in order by but not in where )

+（字符串连接）

Answer 2

SELECT StateID + ' - ' + Area AS SateArea