SQL-将所有用户合并到一个表中，不带不规则的空值

我希望null值位于列表的末尾，但将它们放在名称之间

KullaniciAdi      KisiAdi
------------      ------------
AHMET GÜNDÜZ      " Ned Hsoleb(Guzel Alli) " --+
AHMET GÜNDÜZ      Raghuvar Masala              |
.                 .                            |
.                 .                            | AHMET GÜNDÜZ Has 10 Friends
.                 .                            |
.                 .                            |
AHMET GÜNDÜZ      Mint Agro -------------------+
ALİ AKKUM         Mustafa Saidmurodov -----+
ALİ AKKUM         Tarimkoop Ihsangazi      |
.                 .                        |
.                 .                        | ALİ AKKUM Has 9 Friends
.                 .                        |
.                 .                        |
ALİ AKKUM         Ali Uçar  ---------------+
YASEMİN AYSEN     Pepinier El Fertas --+
.                 .                    |
.                 .                    | YASEMİN AYSEN Has 6 Friends
.                 .                    |
YASEMİN AYSEN     Sarker Tredres ------+

这是我的查询联合-所有用户，但不规则的空值； 将@cols声明为NVARCHARMAX，将@query声明为NVARCHARMAX； 设置@cols=STUFFSELECT distinct'，当KullaniciAdi='+p.KullaniciAdi+'时为MAXCASE，然后KisiAdi结束为'+QuoteNameep.KullaniciAdi，来自Popper p，用于XML路径，TYPE.value''，NVARCHARMAX'，1,1， 将@query='从选择KullaniciAdi、KisiAdi、按KullaniciAdi顺序划分的行数中选择'+@cols+'，按EklenmeTarihi将其设置为Popper x GROUP中的RowNum BY RowNum'

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EXECUTE@query在GROUPBY语句之后，您需要添加这样的ORDERBY子句，以便将null值推到末尾

ORDER BY 
ISNULL(AHMET GÜNDÜZ ,'zzzzz'),ISNULL(ALİ AKKUM  ,'zzzzz'),ISNULL(YASEMİN AYSEN,'zzzzz')

此查询将首先输出所有非空值，并将空值推送到最后一行。试试这个

DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX), @ordercols as NVARCHAR(MAX); 
SET @ordercols = STUFF((SELECT distinct ',case when isnull([' + p.KullaniciAdi + '],''0'')=''0'' then ''0'' else ''1'' end ' FROM Populer p FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)')  ,1,1,'') 
SET @cols = STUFF((SELECT distinct ',MAX(CASE WHEN KullaniciAdi = '''  + p.KullaniciAdi + ''' THEN KisiAdi END) AS '  + QUOTENAME(p.KullaniciAdi) FROM Populer p FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)')  ,1,1,'') 
set @query = 'SELECT * from(SELECT ' + @cols + ' FROM  (   SELECT KullaniciAdi,KisiAdi,ROW_NUMBER() OVER (PARTITION BY KullaniciAdi ORDER BY EklenmeTarihi) AS RowNum FROM Populer ) x GROUP BY RowNum)a order by concat(  ' +@ordercols+') desc'
EXECUTE(@query)

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您必须通过以下方式将以下代码添加到运算符顺序：case当KisiAdi为null时，则0否则1 end desc

您可以使用ROW_NUMBER来获得结果。下面的SQL将在末尾显示空值。我刚刚用行号修改了您的SQL

输出

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在sql查询中为这些列添加order by子句，并检查WHERE？你能给我一个带有代码的示例吗？你已经能够修改在上一个问题中给你的查询了。当然，您可以添加ORDER BY.ORDER BY仍然添加了ORDER BY EklenmeTarihi。我无法理解…我有100多个用户，这意味着查询有100多个“ISNULL”字：你可以将其动态设置为@cols，你只需要添加一个与isnulll的连接就可以了，因为我的sql技能不足以实现你的建议。你能帮我吗？Ajan Balakumaran你在吗？@HasanKaanTURAN你能不能为你的表创建一个提琴，这样我就可以测试查询并给出解决方案。Eklematarihi列中的值是什么？上传日期行EklenmeTarihi列的值是否为null？不可能：我检查过了KisiAdi列的值是否为null？KullaniciAdi ASC的第二个顺序是否不起作用：也将由KisiAdi排序ASC@HasanKaanTURAN，我已更改代码。现在检查表中的列是按字母顺序排列的。但当我尝试在表上执行时，不起作用：。我能把我的数据寄给你吗？你能在我的桌子上测试你的代码吗？

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

    SET @cols = STUFF((
        SELECT distinct ', MAX(CASE WHEN KullaniciAdi = '''  + 
            p.KullaniciAdi + ''' THEN KisiAdi END) AS '  + 
            QUOTENAME(p.KullaniciAdi) 
        FROM Populer p FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)'), 1, 1,'');

    SET @query = 
        'SELECT ' + @cols + 
        ' FROM  (   
            SELECT KullaniciAdi, KisiAdi, 
                ROW_NUMBER() OVER 
                (PARTITION BY KullaniciAdi ORDER BY case when KisiAdi is null then 0 else 1 end desc, EklenmeTarihi) AS RowNum 
            FROM Populer ) x 
        GROUP BY RowNum '; 

    EXECUTE(@query);

DECLARE @cols AS NVARCHAR(MAX), @query AS NVARCHAR(MAX); 
CREATE TABLE #tempPopuler (KullaniciAdi VARCHAR(50), KisiAdi VARCHAR(50))
INSERT INTO #tempPopuler VALUES('AHMET', 'Ned Hsoleb')
INSERT INTO #tempPopuler VALUES('AHMET', 'Raghuvar')
INSERT INTO #tempPopuler VALUES('AHMET', 'Mint Agro')
INSERT INTO #tempPopuler VALUES('ALI', 'Mustafa')
INSERT INTO #tempPopuler VALUES('ALI', 'Tarimkoop')
INSERT INTO #tempPopuler VALUES('YASEMIN', 'Pepinier')
INSERT INTO #tempPopuler VALUES('AHMET', 'A')
INSERT INTO #tempPopuler VALUES('AHMET', 'B')
INSERT INTO #tempPopuler VALUES('AHMET', 'C')
INSERT INTO #tempPopuler VALUES('ALI', 'A')
INSERT INTO #tempPopuler VALUES('ALI', 'B')
INSERT INTO #tempPopuler VALUES('YASEMIN', 'A')
INSERT INTO #tempPopuler VALUES('YASEMIN', 'B')

SET @cols = STUFF((SELECT distinct ',(SELECT KisiAdi FROM (SELECT ROW_NUMBER() OVER (ORDER BY KisiAdi ASC) AS rownumber, KullaniciAdi, KisiAdi FROM [#tempPopuler] where KullaniciAdi = '''  + p.KullaniciAdi + ''') AS foo WHERE rownumber = x.ROW and  KullaniciAdi ='''  + p.KullaniciAdi + ''') AS'  + QUOTENAME(p.KullaniciAdi) FROM #tempPopuler p FOR XML PATH(''), TYPE ).value('.', 'NVARCHAR(MAX)')  ,1,1,'') 
set @query = 'SELECT ' + @cols + ' FROM  (SELECT KullaniciAdi,KisiAdi, ROW_NUMBER() OVER(ORDER BY KisiAdi ASC) AS [ROW] FROM #tempPopuler) x' 

EXECUTE(@query)

DROP TABLE #tempPopuler