现在,我有一个这样的 SQL 查询:
Right now, I have a SQL Query like this one:
SELECT X, Y FROM POINTS
它返回这样的结果:
X Y
----------
12 3
15 2
18 12
20 29
我想在一行中返回结果,就像这样(适合在 HTML 标签中使用):
I'd like to return results all in one row, like this (suitable for using in an HTML <AREA> tag):
XYLIST
----------
12,3,15,2,18,12,20,29
有没有办法只使用 SQL 来做到这一点?
Is there a way to do this using just SQL?
DECLARE @XYList varchar(MAX)
SET @XYList = ''
SELECT @XYList = @XYList + CONVERT(varchar, X) + ',' + CONVERT(varchar, Y) + ','
FROM POINTS
-- Remove last comma
SELECT LEFT(@XYList, LEN(@XYList) - 1)
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