[msSql]表列拼接成字符串

时事造英雄，实践长知识。深夜中还在公司加班，这周周末过得有点累。不过还是想分享下刚刚的知识：将表列拼接成字符串。闲话不多说切入正题，看代码：

select  STUFF(
		REPLACE(
			REPLACE(
				(select  fieldName as pc from cj_datadictionary as N
				join [CSD_ORD_PayMent]  on costsid=fieldCode and fieldType='OP' where memberid=72157 and groupID='201205DD2119416553' and [Expenditure]>0 
				FOR XML AUTO),'<N pc="','+'
			),'"/>',''
		),1,1,''
	)

第一步：将表转化为xml格式

			select  fieldName as pc from cj_datadictionary as N
			join [CSD_ORD_PayMent]  on costsid=fieldCode and fieldType='OP' 
			where memberid=72157 and groupID='201205DD2119416553' and [Expenditure]>0 
			FOR XML AUTO

第二步：替换<N pc=" 注：N是表名，pc是列名

			select REPLACE((select  fieldName as pc from cj_datadictionary as N
			join [CSD_ORD_PayMent]  on costsid=fieldCode and fieldType='OP' 
			where memberid=72157 and groupID='201205DD2119416553' and [Expenditure]>0 
			FOR XML AUTO),'<N pc="','+')

第三步：替换 "/> 注：每项都会以“<表 字段”开始，以“ "/>”结束

			select REPLACE(REPLACE((select  fieldName as pc from cj_datadictionary as N
			join [CSD_ORD_PayMent]  on costsid=fieldCode and fieldType='OP' 
			where memberid=72157 and groupID='201205DD2119416553' and [Expenditure]>0 
			FOR XML AUTO),'<N pc="','+'),'"/>','')

最后使用：STUFF() 函数作用：删除指定长度的字符，并在指定的起点上插入另外的字符串

select  STUFF(
		REPLACE(
			REPLACE(
				(select  fieldName as pc from cj_datadictionary as N
				join [CSD_ORD_PayMent]  on costsid=fieldCode and fieldType='OP' where memberid=72157 and groupID='201205DD2119416553' and [Expenditure]>0 
				FOR XML AUTO),'<N pc="','+'
			),'"/>',''
		),1,1,''
	)

大功告成，打完收工，准备下班回家！

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