我需要创建一个视图，将多行连接成一行。
有问题的表是QotMaster，我需要加入来自NComment字段的LineType ='6'的所有行，并且我猜测要将每个引用下的它们分组到Quote字段。连接的每一行都有字段Line，从2开始，并根据引号注释的行数增加。
最终我想读一行：
Quote NComment
00202300 Lines for quotes all listed one after the other starting at 2 and so on
任何帮助都会受到很大的影响。香港专业教育学院试图转储我需要连接下面的部分。
Quote Line LineType DefaultEntry ProductClass TaxCode FedSalesTax MStockCode MDescription MWarehouse MUom MDecimals MLineShipDate MCusStockCode MCusRetailPrice MMass MVolume MUserField1 NComment NCommentFromLin NCommentType NCommentTextTyp NSrvIncTotal NSrvSummary NSrvChargeType NSrvParentLine NSrvQtyFactor NSrvApplyFactor NSrvDecimalRnd NSrvDecRndFlag NSrvMinValue NSrvMaxValue NSrvMulDiv NPrtOnInv NPrtOnDel NPrtOnAck NPrtOnQuote NCommentFlag1 NCommentFlag2 NCommentFlag3 NCommentFlag4 NCommentFlag5 NCommentFlag6 NCommentPoJob TimeStamp Version Release SalesOrderLine MBomFlag MParentKitType MQtyPer MScrapPercentage MPrintComponent MComponentSeq MOptionalFlag Estimate ConfirmedFlag
00202300 1 7 0 M20 002023000000001 Periodic inspection & test ** 0 2012-01-13 00:00:00.000 0.00000 0.000000 0.000000 0 0 0.000000 0 0.00 0.00 0 0 0 0 0 0 0x000000002414E6EE 0 0.000000 0.00 N
00202300 2 6 0 0 NULL 0.00000 0.000000 0.000000 Pre-Formed Windings, Sheffield 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C0 0 0.000000 0.00
00202300 3 6 0 0 NULL 0.00000 0.000000 0.000000 To carry out a periodic inspection and test 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C1 0 0.000000 0.00
00202300 4 6 0 0 NULL 0.00000 0.000000 0.000000 of the fixed wiring installation. This will 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C2 0 0.000000 0.00
00202300 5 6 0 0 NULL 0.00000 0.000000 0.000000 consist of 100% inspection and 10% testing, 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C3 0 0.000000 0.00
00202300 6 6 0 0 NULL 0.00000 0.000000 0.000000 based on previous records being available. 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C4 0 0.000000 0.00
00202300 7 6 0 0 NULL 0.00000 0.000000 0.000000 The price is based on no serious defects 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C5 0 0.000000 0.00
00202300 8 6 0 0 NULL 0.00000 0.000000 0.000000 being found, which may result in the testing 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C6 0 0.000000 0.00
00202300 9 6 0 0 NULL 0.00000 0.000000 0.000000 being expanded to cover 25%, which would 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C7 0 0.000000 0.00
00202300 10 6 0 0 NULL 0.00000 0.000000 0.000000 incur additional costs. A full report will 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C8 0 0.000000 0.00
00202300 11 6 0 0 NULL 0.00000 0.000000 0.000000 be issued upon completion. 0 N 0 0.000000 0 0.00 0.00 Y 1 0 0 0 0 0 0x000000002414E6C9 0 0.000000 0.00
答案 0 :(得分：0)
在sql server中，您只需要创建一个函数来执行以下操作：
CREATE FUNCTION [dbo].[mergeComments](@quote NVARCHAR(8))
RETURNS nvarchar(max)
AS
BEGIN
DECLARE @comment nvarchar(max)
DECLARE @delimiter nvarchar(2)
SET @delimiter = ', '
SET @comment = ''
SELECT @comment = @comment + ISNULL(NComment,'')+@delimiter
FROM QotMaster
WHERE Quote = @quote AND Line > 1
SET @comment = substring(@comment,1,len(@comment)-LEN(@delimiter))
RETURN @comment
END
然后你的观点就会像
那样做点什么SELECT Quote, dbo.mergeComments(Quote) NQuote
FROM (SELECT DISTINCT Quote FROM QotMaster)
这只是我的头脑，所以可能有更好的方法。