Ich habe einen reinen T-SQL-Ansatz gefunden, um Ergebnisse VERTIKAL im Ergebnisfenster anzuzeigen . Es handelt sich um eine benutzerdefinierte gespeicherte Prozedur (sp_SHOWDOWN), die ich von diesem Link kopiere. Sie könnten damit herumspielen, um zu sehen, ob es hilft.
Der Autor weist auf einige Einschränkungen hin:
- Die Abfrage kann mit so vielen Verknüpfungen so komplex wie nötig sein. Die Spaltennamen müssen jedoch aufgrund der temporären Tabelle eindeutig sein.
- Es wird sehr langsam sein, wenn Sie versuchen, viele Datensätze zurückzugeben. Funktioniert am besten für Abfragen, die 10 oder weniger Datensätze zurückgeben.
- Es zeigt die DATALENGTH für Text- und Bildfelder an
Hier ist eine kurze Beschreibung ( aus dem Beitrag entnommen ):
Mit diesem Verfahren können Sie die Ergebnisse vertikal (nach unten) anstatt über den Bildschirm anzeigen. Es ist großartig, wenn Sie mit einer Abfrage arbeiten, die 50 Spalten und nur ein paar Datensätze enthält
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
/********************************************************************************************************
** NAME: sp_ShowDown
**
** DESC: Display (SHOWs) the results of a SELECT vertically (DOWN) instead of horizontally
** The query can be as complex as necessary with as many joins however the column names
** must be unique because of the temp table. Note image and text fields display only
** their size (DATALENGTH)
**
** PARM: @Help = 1 will display syntax and instructions
**
** RETR: the resultset of the records. Notes displaying a lot of records will take a LONG time. Generally
** this should be used for recordsets of no more than 10.
**
** AUTH: D. Simmons
**
** SYNTAX sp_showdown 1 -- displays full syntax on how to run
**
** MOD DATE:
** 05.22.07 - DTS Prevent casting of image & text to varchar
** 05.20.07 - DTS original version
*********************************************************************************************************/
ALTER PROCEDURE [dbo].[sp_ShowDown] (
@help BIT = NULL
)
AS
SET NOCOUNT ON
-- ------------------------------------------------------------------------
-- DECLARATION AND TABLE CREATION
-- ------------------------------------------------------------------------
DECLARE
@Column VARCHAR(60), -- the fieldname
@CurrOrdPos INT, -- the order of the column in the table
@SQL VARCHAR(1000), -- dynamic select statement
@SQ CHAR(1), -- single quote
@MaxTable VARCHAR(1000), -- holds the tempwide2 name - the true one stored in tempdb
@RecordID INT, -- each record's number to aid in sorting when more than one record is return
@DataType VARCHAR(25), -- the datatype of the field
@FieldName VARCHAR(200) -- will hold column's name with brackets ready for the SELECT
IF OBJECT_ID('tempdb..#tempdown') IS NOT NULL DROP TABLE #tempdown
CREATE TABLE #tempdown (
Rec INT, -- short column names on purpose so it doesn't take up much
Ord INT, -- space in final result
ColumnName VARCHAR(60), -- the columnname
Data VARCHAR(7500) -- the data for the column
)
-- ------------------------------------------------------------------------
-- INITIALIZE
-- ------------------------------------------------------------------------
SET @RecordID = 0
-- CONSTANTS
SET @SQ = CHAR(39) -- single quote
-- ------------------------------------------------------------------------
-- LOGIC
-- ------------------------------------------------------------------------
-- print the syntax and usage instructions to the result window
IF @Help = 1 BEGIN
PRINT 'Keep in mind that with temp tables the column names must be unique!'
PRINT ' '
PRINT 'Example of syntax: '
PRINT ' '
PRINT 'IF OBJECT_ID(''tempdb..#tempwide'') IS NOT NULL DROP TABLE #tempwide -- ADD TO TOP OF YOUR SELECT'
PRINT ' '
PRINT 'SELECT TOP 1 * '
PRINT 'INTO #tempwide -- ADD THIS TO YOUR QUERY'
PRINT 'FROM authors a'
PRINT ' '
PRINT 'EXEC _SHOWDOWN -- ADD AS THE LAST LINE'
PRINT ' '
PRINT 'COPY THESE LINES and place where instructed'
PRINT 'IF OBJECT_ID(''tempdb..#tempwide'') IS NOT NULL DROP TABLE #tempwide'
PRINT 'INTO #tempwide'
PRINT 'EXEC sp_SHOWDOWN'
RETURN
END
-- Create a new 'wide' table so we can add a RecordID (DIDROCER) which allows muliple records and their fields
-- to be grouped together. DIDROCER is RecordID backwards. Needed a field name that will have an unlikely
-- chance of ever being in a real table since it will be excluded from the results displayed vertically.
SELECT 0 'DIDROCER', *
INTO #tempwide2
FROM #tempwide
-- increment the record id for the table
UPDATE #tempwide2 SET @RecordID = DIDROCER = @RecordID + 1
-- get name of tempwide2 table (the true name in tempdb)
SET @MaxTable = ( SELECT MAX(TABLE_NAME)
FROM tempdb.INFORMATION_SCHEMA.TABLES
WHERE Table_Name LIKE '%#tempwide2%'
)
-- get the min ord position for the first column for my temp table. Eliminates need for cursor
SET @CurrOrdPos = ( SELECT MIN(Ordinal_Position)
FROM tempdb.INFORMATION_SCHEMA.COLUMNS
WHERE Table_Name LIKE '%' + @MaxTable + '%' )
-- while we have columns in the temp table loop through them and put their data into the
-- tempdown table
WHILE @CurrOrdPos IS NOT NULL BEGIN
-- get a column name and the data type
SELECT @Column = COLUMN_NAME, @DataType = Data_Type
FROM tempdb.INFORMATION_SCHEMA.COLUMNS
WHERE Table_Name LIKE '%' + @MaxTable + '%'
AND Ordinal_Position = @CurrOrdPos
IF @Column <> 'DIDROCER' BEGIN -- if it is not the recordid (spelled backward) row from tempwide2 get the row
IF @DataType IN ( 'image', 'text' ) BEGIN
-- 'Size of Data: ' + CONVERT(VARCHAR(15), DATALENGTH([NoteText] ))
SET @FieldName = @SQ + 'Size of Data: ' + @SQ + ' + CONVERT(VARCHAR(15), DATALENGTH(' + @FieldName + ')) '
END ELSE BEGIN
SET @FieldName = 'CAST( [' + @Column + '] AS VARCHAR(7500) )' -- the fieldname w/ brackets used in SELECT to display the data
END
-- build the insert that will put the data into the tempdown table
SET @SQL = ' INSERT INTO #tempdown '
SET @SQL = @SQL + 'SELECT didrocer ' + @SQ + 'RecordID' + @SQ + ', ' -- recordid field from tempwide2 table
SET @SQL = @SQL + CONVERT(VARCHAR(10), @CurrOrdPos) + ', ' -- order of the column
SET @SQL = @SQL + @SQ + @Column + @SQ + ' ' + @SQ + 'Field' + @SQ + ', ' -- field name
SET @SQL = @SQL + @FieldName + @SQ + @Column + @SQ -- field data
SET @SQL = @SQL + ' FROM ' + @MaxTable -- from tempwide2
END
--@SQL above looks like this:
--INSERT INTO #tempdown SELECT DIDROCER 'RecordID', 5, 'UserID' 'Field', [UserID] 'UserID' FROM #tempwide2 {shorten}_____00010000003F
--PRINT @SQL
EXEC ( @SQL ) -- run the insert into #tempdown
-- get the next column pos
SET @CurrOrdPos = ( SELECT MIN(Ordinal_Position)
FROM tempdb.INFORMATION_SCHEMA.COLUMNS
WHERE Table_Name LIKE '%' + @MaxTable + '%'
AND Ordinal_Position > @CurrOrdPos)
END
-- display the results VERTICALLY!
SELECT ColumnName, Data FROM #tempdown ORDER BY Rec, Ord, ColumnName
-- clean up
IF OBJECT_ID('tempdb..#tempdown') IS NOT NULL DROP TABLE #tempdown
IF OBJECT_ID('tempdb..#tempwide') IS NOT NULL DROP TABLE #tempwide
IF OBJECT_ID('tempdb..#tempwide2') IS NOT NULL DROP TABLE #tempwide2
Einrichten eines Prüfstands mit Daten
--Setup testbed of data
DROP TABLE IF EXISTS dbo.customer
CREATE TABLE [dbo].[Customer] (
[CustomerID] [int] NULL
,[Name] [varchar](30) NULL
,[RecordCreated] [datetime] NULL
,[RecordUpdated] [datetime] NULL
,
) ON [PRIMARY]
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (1, N'James', CAST(N'2017-11-01T16:16:21.297' AS DateTime), CAST(N'2017-11-01T16:52:02.427' AS DateTime))
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (2, N'John', CAST(N'2017-11-01T16:41:52.347' AS DateTime), CAST(N'2017-11-01T16:41:52.347' AS DateTime))
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (3, N'Sam', CAST(N'2017-11-01T16:50:25.430' AS DateTime), CAST(N'2017-11-01T16:50:25.430' AS DateTime))
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (1, N'James', CAST(N'2017-11-01T16:16:21.297' AS DateTime), CAST(N'2017-11-01T16:52:02.427' AS DateTime))
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (2, N'John', CAST(N'2017-11-01T16:41:52.347' AS DateTime), CAST(N'2017-11-01T16:41:52.347' AS DateTime))
GO
INSERT [dbo].[Customer] ([CustomerID], [Name], [RecordCreated], [RecordUpdated]) VALUES (3, N'Sam', CAST(N'2017-11-01T16:50:25.430' AS DateTime), CAST(N'2017-11-01T16:50:25.430' AS DateTime))
GO
Hier ist der eigentliche Prozess, um die Ergebnisse im vertikalen Format zurückzugeben
IF OBJECT_ID('tempdb..#tempwide') IS NOT NULL DROP TABLE #tempwide
SELECT *
INTO #tempwide -- ADD THIS TO YOUR QUERY
FROM customer a
EXEC sp_SHOWDOWN -- ADD AS THE LAST LINE
Hier sind die Ergebnisse
| CustomerID | 1 |
|---------------|---------------------|
| Name | James |
| RecordCreated | Nov 1 2017 4:16PM |
| RecordUpdated | Nov 1 2017 4:52PM |
| CustomerID | 2 |
| Name | John |
| RecordCreated | Nov 1 2017 4:41PM |
| RecordUpdated | Nov 1 2017 4:41PM |
| CustomerID | 3 |
| Name | Sam |
| RecordCreated | Nov 1 2017 4:50PM |
| RecordUpdated | Nov 1 2017 4:50PM |
| CustomerID | 1 |
| Name | James |
| RecordCreated | Nov 1 2017 4:16PM |
| RecordUpdated | Nov 1 2017 4:52PM |
| CustomerID | 2 |
| Name | John |
| RecordCreated | Nov 1 2017 4:41PM |
| RecordUpdated | Nov 1 2017 4:41PM |
| CustomerID | 3 |
| Name | Sam |
| RecordCreated | Nov 1 2017 4:50PM |
| RecordUpdated | Nov 1 2017 4:50PM |
Update (09.02.2018)
Nachdem ich meine Antwort gepostet hatte, fügte Martin Smith einen Kommentar hinzu, der auf eine fantastisch einfache Herangehensweise an dieses Problem mit FOR XML PATHund ein paar verwies CROSS APPLY.
Ich füge seine Lösung hier hinzu, falls der SQL Fiddle- Link nicht mehr funktioniert.
SELECT n.value('local-name(.)', 'SYSNAME') AS Col,
n.value('.', 'nvarchar(4000)')
FROM Customer c
CROSS APPLY
(SELECT c.*
FOR XML PATH('r'), TYPE) ca(x)
CROSS APPLY ca.x.nodes('/r/*') n(n)