假设我有一个名为 #Foo 的表格:
Id Color
-- ----
1 Red
2 Green
3 Blue
4 NULL
还有表格 #Bar:
Value
-----
1
2.5
我想使用简单语句创建表Result并实现以下效果:
Id Color Value
-- ---- -----
1 Red 1
2 Green 2.5
3 Blue NULL
4 NULL NULL
到目前为止,我发明的东西有:
WITH cte1
AS
(
SELECT [Id], [Color], ROW_NUMBER() OVER (ORDER BY [Id]) AS 'No'
FROM #Foo
),
cte2
AS
(
SELECT [Value], ROW_NUMBER() OVER (ORDER BY [Value]) AS 'No'
FROM #Bar
)
SELECT [Id], [Color], [Value]
FROM cte1 c1
FULL OUTER JOIN cte2 c2 ON c1.[No] = c2.[No]
您知道在T-SQL中执行ZIP JOIN的更快或更标准的方法吗?