Sql 我需要动态地将查询结果按行排列成按列排列

我有三个表

country

、

countrycontent

和

language

，每个表的create和insert语句显示在下面的脚本中（您可以通过执行下面的脚本直接创建和插入数据）

---

---

---

在所有表中插入数据

---

我需要查询/存储过程的输出，如下图所示：

---

我创建了存储过程，如下所示

---

在这里确保， 语言表中的语言数可能会增加 country in country表可能会增加

在这两种情况下，查询/存储过程都应正常工作，无需任何更改。

---

我的意思是查询/存储过程应该是动态的。

您可以使用pivot操作符并将查询编写为：

DECLARE @cols AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT distinct ',' + QUOTENAME(name) 
                    from [language]
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query = 'SELECT countryid,' + @cols + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].name as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '

execute sp_executesql @query;

---

您可以使用pivot运算符并按以下方式编写查询：

DECLARE @cols AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT distinct ',' + QUOTENAME(name) 
                    from [language]
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query = 'SELECT countryid,' + @cols + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].name as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '

execute sp_executesql @query;

---

巴维斯我想你想要这个

DECLARE @cols AS NVARCHAR(MAX),
@cols1 AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT ',' + QUOTENAME(rtrim(ltrim(code))) 
                    from [language] order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')


select @cols1 = STUFF((SELECT  'Isnull(' + QUOTENAME(rtrim(ltrim(code))) + ','''') as '  + QUOTENAME(rtrim(ltrim(code))) + ','  
                    from [language] Order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,0,'')

Set @cols1 = Left(@cols1 , LEN(@cols1) - 1) 


set @query = 'SELECT countryid,' + @cols1 + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].code as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '



execute sp_executesql @query;

---

巴维斯我想你想要这个

DECLARE @cols AS NVARCHAR(MAX),
@cols1 AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT ',' + QUOTENAME(rtrim(ltrim(code))) 
                    from [language] order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')


select @cols1 = STUFF((SELECT  'Isnull(' + QUOTENAME(rtrim(ltrim(code))) + ','''') as '  + QUOTENAME(rtrim(ltrim(code))) + ','  
                    from [language] Order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,0,'')

Set @cols1 = Left(@cols1 , LEN(@cols1) - 1) 


set @query = 'SELECT countryid,' + @cols1 + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].code as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '



execute sp_executesql @query;

---

看，我已经用我所做的更新了这个问题。@BhaveshKachhadiya也看到了这个答案。。。看，我已经用我所做的更新了这个问题。@BhaveshKachhadiya也看到了这个答案@Deepshikha您的代码工作正常，但是列的顺序不正确，列名应该是语言代码，我需要空单元格而不是

NULL

value。你能做到吗？@Deepshikha你的代码工作正常，但是列的顺序不正确，列名应该是语言代码，我需要空单元格而不是

NULL

value。你能做到吗？这正是我需要的。。！这正是我需要的。。！

CREATE PROCEDURE GetCountryList 
AS
BEGIN
    SET NOCOUNT ON;

    SELECT c.id AS countryid, l.code languagecode , cc.NAME 
    FROM country c 
         INNER JOIN countrycontent cc ON c.id= cc.countryid AND c.flagdeleted = 0 AND cc.flagdeleted =0
         INNER JOIN [language] l ON l.id = cc.languageid AND l.flagdeleted =0
END
GO

DECLARE @cols AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT distinct ',' + QUOTENAME(name) 
                    from [language]
            FOR XML PATH(''), TYPE
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')

set @query = 'SELECT countryid,' + @cols + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].name as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '

execute sp_executesql @query;

DECLARE @cols AS NVARCHAR(MAX),
@cols1 AS NVARCHAR(MAX),
@query  AS NVARCHAR(MAX)

select @cols = STUFF((SELECT ',' + QUOTENAME(rtrim(ltrim(code))) 
                    from [language] order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,1,'')


select @cols1 = STUFF((SELECT  'Isnull(' + QUOTENAME(rtrim(ltrim(code))) + ','''') as '  + QUOTENAME(rtrim(ltrim(code))) + ','  
                    from [language] Order by id
            FOR XML PATH(''), TYPE 
            ).value('.', 'NVARCHAR(MAX)') 
        ,1,0,'')

Set @cols1 = Left(@cols1 , LEN(@cols1) - 1) 


set @query = 'SELECT countryid,' + @cols1 + ' 
            from 
            (
                select cc.countryid ,cc.name as countrycontentname, [language].code as languagename
                from countrycontent cc
                inner join [language] on cc.languageid = [language].id 
            ) T 
            pivot 
            (
                max (countrycontentname)
                for languagename in (' + @cols + ')
            ) p '



execute sp_executesql @query;