Ich möchte mehrere Zeilen in eine einzige benutzerdefinierte Zeile in SQL Server konvertieren

Question

Ich möchte mehrere Zeilen in eine einzelne Zeile basierend auf der Gruppe konvertieren.

ich die Probe Screenshot beigefügt haben:

Answer 1

Nolan Antwort ist vielseitiger, wenn Sie nur diese feste Anzahl von Zeilen in einen Stat umwandeln müssen ie Spalten, warum nicht einfach?

;WITH cteYourData 
    (
    ColumnName, 
    Value, 
    NewValue, 
    NV_Decode, 
    OldValue, 
    OV_Decode 
    ) 
    AS 
    (
    SELECT 'HearingDetailsId', 379785, 379785, NULL, NULL, NULL 
    UNION ALL SELECT 'Informal', 379785, 5641, 'karthick.devaraj', 863, 'Prabhu' 
    UNION ALL SELECT 'Formal', 379785, 5641, '5641', NULL, NULL 
    ) 
    SELECT * 
     INTO #YourData 
     FROM cteYourData; 

SELECT HearingDetailsId = hd.Value, 
    [Informal NewValue] = inf.NewValue, 
    [Informal NV_Decode] = inf.NV_Decode, 
    [Informal OldValue] = inf.OldValue, 
    [Informal OV_Decode] = inf.OV_Decode, 
    [Formal NewValue] = frm.NewValue, 
    [Formal NV_Decode] = frm.NV_Decode, 
    [Formal OldValue] = frm.OldValue, 
    [Formal OV_Decode] = frm.OV_Decode 
    FROM #YourData AS hd 
     LEFT OUTER JOIN #YourData AS inf 
      ON hd.Value = inf.Value 
      AND inf.ColumnName = 'Informal' 
     LEFT OUTER JOIN #YourData AS frm 
      ON hd.Value = frm.Value 
      AND frm.ColumnName = 'Formal' 
    WHERE hd.ColumnName = 'HearingDetailsId' 

Answer 2

CREATE TABLE #tt(ColumnName varchar(100),[value] int,NewValue int,NV_Decode varchar(100),OldVaue int,OV_Decode varchar(100)) 
INSERT INTO #tt 
VALUES('HearingDetailsid',3797685,3797685,NULL,NULL,NULL) 
,('Informal',3797685,5641,'karthick. devaral',863,'Prabhu') 
,('Formal',3797685,5641,'5641',null,null) 

SELECT * FROM (
     SELECT [value] AS [HearingDetailsid], c.col_title,c.col_value FROM #tt AS t 
     CROSS APPLY(VALUES (ColumnName+'NewValue',CONVERT(VARCHAR,NewValue)),(ColumnName+'NV_Decode',CONVERT(VARCHAR,NV_Decode)) 
         ,(ColumnName+'OldVaue',CONVERT(VARCHAR,OldVaue)),(ColumnName+'OV_Decode',CONVERT(VARCHAR,OV_Decode)) 
     ) c(col_title,col_value) 
     WHERE t.ColumnName!='HearingDetailsid' 
) AS t 
PIVOT(MAX(t.col_value) FOR t.col_title IN (InformalNewValue,InformalNV_Decode,InformalOldVaue,InformalOV_Decode,FormalNewValue 
,FormalNV_Decode,FormalOldVaue,FormalOV_Decode)) p 

Wenn der Spaltenname nicht festgelegt ist, können Sie dynamische Skript verwenden:

DECLARE @col VARCHAR(max),@sql VARCHAR(max) 
    SELECT @col=ISNULL(@col+',','')+ t.ColumnName+'NewValue,'+t.ColumnName+'NV_Decode,' + t.ColumnName+'OldVaue,'+t.ColumnName+'OV_Decode' 
    FROM #tt AS t WHERE t.value!=t.NewValue 
    --PRINT @col 

    SET @sql='SELECT * FROM (
       SELECT [value] AS [HearingDetailsid], c.col_title,c.col_value FROM #tt AS t 
       CROSS APPLY(VALUES (ColumnName+''NewValue'',CONVERT(VARCHAR,NewValue)),(ColumnName+''NV_Decode'',CONVERT(VARCHAR,NV_Decode)) 
           ,(ColumnName+''OldVaue'',CONVERT(VARCHAR,OldVaue)),(ColumnName+''OV_Decode'',CONVERT(VARCHAR,OV_Decode)) 
       ) c(col_title,col_value) 
       WHERE t.value!=t.NewValue 
     ) AS t 
     PIVOT(MAX(t.col_value) FOR t.col_title IN ('+@col+')) p' 
    EXEC(@sql) 

 
HearingDetailsid InformalNewValue    InformalNV_Decode    InformalOldVaue    InformalOV_Decode    FormalNewValue     FormalNV_Decode    FormalOldVaue     FormalOV_Decode 
---------------- ------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------ ------------------------------ 
3797685   5641       karthick. devaral    863       Prabhu       5641       5641       NULL       NULL