如何在查询

Question

我有以下查询：

SELECT sum(qty) AS TotalItems FROM Sales.OrderDetails;

然后返回

+------------+
| TotalItems |
+------------+
| 51317      |
+------------+

但是，我希望输出读取

+------------------------------+
| TotalItems                   |
+------------------------------+
| Total items ordered is 51317 |
+------------------------------+

我该怎么做？

Answer 1

如果您使用的是Sql Server 2008，请尝试：

SELECT 'Total items ordered is ' + cast(sum(qty) as varchar(max)) AS TotalItems FROM Sales.OrderDetails;

Answer 2

您的数据库可能是Oracle，然后您应该尝试：

SELECT 'Total items ordered is ' || cast(sum(qty) as varchar(max)) AS TotalItems 
FROM Sales.OrderDetails