在不使用连接的情况下将两个表组合在一起

Question

有两种不同的表格，我希望它们合二为一：

表1：

+-------------+------------+  
| ProdCode    | QTY        |  
+-------------+------------+  
| 1           | 1          |  
+-------------+------------+
| 2           | 4          |  
+-------------+------------+    
| 3           | 4          |  
+-------------+------------+ 
| 4           | 5          |  
+-------------+------------+ 

表2：

+-------------+------------+  
| MatCode     | QTY        |  
+-------------+------------+  
| ZZ          | 21         |  
+-------------+------------+
| AA          | 44         |  
+-------------+------------+    
| RR          | 44         |  
+-------------+------------+ 
| QQ          | 52         |  
+-------------+------------+ 

最终结果：

+-------------+------------+  
| Code        | QTY        |  
+-------------+------------+  
| 1           | 1          |  
+-------------+------------+
| 2           | 4          |  
+-------------+------------+    
| 3           | 4          |  
+-------------+------------+ 
| 4           | 5          |  
+-------------+------------+ 
| ZZ          | 21         |  
+-------------+------------+
| AA          | 44         |  
+-------------+------------+    
| RR          | 44         |  
+-------------+------------+ 
| QQ          | 52         |  
+-------------+------------+ 

如果ProdCode和MatCode不相关，是否可以这样做？

Answer 1

SELECT ProdCode, QTY FROM [table1]
UNION ALL
SELECT MatCode, QTY FROM [table2]

这将从两个表中选择记录并将它们作为一个结果集返回。