Question

我有这样的查询

SELECT COUNT(ID) 'Records Affected', TYPE FROM MASTER
GROUP BY TYPE

此输出为

Records Affected            TYPE
----------------            ---- 
4                            F1
3                            F2
5                            F3

现在我想更改查询，以便输出如下

Records Affected
----------------
The number of records affected for F1 is : 4 
The number of records affected for F2 is : 3
The number of records affected for F3 is : 5

"The number of records affected for " + TYPE + " is : " + COUNT.

如何将默认文本添加到结果集的每一行，而不是附加到前端。我想简化我只是将DataGrid中的记录显示为摘要的任务。

Answer 1

您可以使用以下内容轻松连接字符串。您将使用+将字符串连接到type列和count。请注意，count需要转换为varchar才能生效：

SELECT 
  'The number of records affected for '+ type +
    ' is : '+ cast(COUNT(ID) as varchar(50)) as'Records Affected'
FROM yt
GROUP BY TYPE;

请参阅SQL Fiddle with Demo

Answer 2

只需将文字放入您的查询中：

SELECT 'The number of records affected for ' + TYPE + ' is : ' + CAST(COUNT(ID) as VARCHAR(20)) AS 'Records Affected' FROM MASTER
GROUP BY TYPE

Answer 3

SELECT "The number of records affected for " + TYPE + " is : " + COUNT(ID) AS [Records Affected]
FROM Master 
GROUP BY TYPE

Answer 4

试试这个：

SELECT 'The number of records affected for ' + TYPE + ' is : ' + 
STR(X.[Records Affected]) AS [Records Affected]
FROM (SELECT COUNT(ID) 'Records Affected', TYPE FROM MASTER GROUP BY TYPE) X

Answer 5

使用此查询：

UPDATE bookmark_linx SET link_url=(SELECT CONCAT(link_url, '?raw=true')) WHERE link_url LIKE '%dropbox%'

将文本附加到sql select查询的每一行

5 个答案: