Question

我想将查询的结果作为1个字符串连接起来。我该怎么做？这是我的选择查询

SELECT CAST(mytable.totalamount AS VARCHAR(100)) + ' ' + mytable.curr AS mytotal 
FROM(SELECT SUM(oitem_total_amount) AS totalamount
           ,unit_code_currency AS curr 
      FROM t_ord_item 
      WHERE basket_id=230 
      GROUP BY unit_code_currency
    ) AS mytable

这是我的结果集

4200.000000 CAD
3735.000000 CNY
19.200000 EUR
19.922175 USD

所以基本上我希望所有4个结果都是1个字符串，以便我可以显示为1个字段。像

这样的东西

4200.000000 CAD <br/>
3735.000000 CNY <br/>
19.200000 EUR <br/>
19.922175 USD

先谢谢

Answer 1

SQL Fiddle

MS SQL Server 2008架构设置：

CREATE TABLE Test_Table(Value NVARCHAR(1000))

INSERT INTO Test_Table VALUES 
('4200.000000 CAD'),
('3735.000000 CNY'),
('19.200000 EUR'),
('19.922175 USD')

查询1 ：

SELECT STUFF((SELECT '<br/> ' + Value
              FROM Test_Table            --<-- Use your Select Query and Table here
              FOR XML PATH(''),TYPE).
              value('.','NVARCHAR(MAX)'),1,6,'') AS List

<强> Results ：

|                                List                                        |
|----------------------------------------------------------------------------|
| 4200.000000 CAD<br/> 3735.000000 CNY<br/> 19.200000 EUR<br/> 19.922175 USD |

Answer 2

您可以使用COALESCE。

DECLARE @currString varchar(max)

SELECT @currString = COALESCE(@currString + ' < br/>  ', '') + CAST(mytable.totalamount AS VARCHAR(100)) + ' ' + mytable.curr 
FROM(SELECT SUM(oitem_total_amount) AS totalamount,unit_code_currency AS curr FROM #t_ord_item WHERE basket_id=230 GROUP BY unit_code_currency
) AS mytable


SELECT mytable = @currString 
GO

Concat来自查询

2 个答案:

SQL Fiddle