Question

我目前正在寻找一个可以执行此操作的Select语句。

|------Apples------| 
 |--id--|
 - 1   
 - 16
 - 23
 - 42

|------Oranges------| 
 |--id--|
 - a   
 - b
 - c

*SELECT STATEMENT*

|------Fruit Cocktail------| 

|--AppleID--|--OrangeID--|
   1              a
   1              b
   1              c
   16             a
   16             b
   16             c

等...

所以基本上每个左手栏都选择那个和每个右手栏

由于丹尼尔

Answer 1

SELECT  *
FROM    Apples
CROSS JOIN
        Oranges

或使用隐式连接语法，只需：

SELECT  *
FROM    Apples, Oranges

Answer 2

这是简单的交叉连接

SELECT * FROM Apples, Oranges;

或

SELECT * FROM Apples CROSS JOIN Oranges;

Answer 3

谢谢你们！

老板为我回答了一个模拟：

Select A.Apple,P.Peach From 
(
Select 1 As Apple
Union
Select 2 As Apple
Union
Select 3 As Apple
Union
Select 4 As Apple
Union
Select 5 As Apple
Union
Select 6 As Apple
) A
Cross Join
(
Select 'a' As Peach
Union
Select 'b'
Union
Select 'c'
Union
Select 'd'
Union
Select 'e'
) P

选择每个左手行的所有右手行SQL ..帮助！

3 个答案: