原文地址:https://blog.csdn.net/u010673842/article/details/79637618 ...
查看重复的构件编码SELECT FROM SELECT NCOMPONENTCODE, COUNT AS RepeatNum, 分部分项名称 STUFF SELECT , PROJECTNAME FROM TB PROJECTS WHERE NCOMPONENTCODE a.NCOMPONENTCODE FOR XML PATH , , , AS PROJECTNAME 分部分项名称 多个以逗号 ...
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原文地址:https://blog.csdn.net/u010673842/article/details/79637618 ...
原表: Parent Child Charles William Charles ...
一、查询结果使用,字符串拼接 declare @names nvarchar(1000) declare @ParmDefinition nvarchar(1000) declare @sqltext nvarchar(500) set @sqltext=N'Select @names ...
参考:SQL server中null+字符串,isnull以及把查询结果赋给一个字符变量组成另一个查询语句 1.开始定义的字符串都为null.例如:declare @sql,那么@sql就是null 如果后面要进行 变量字符串的变量拼接的话,最好是给@sql先赋值为空 或者 其他变量 ...
create table tb(id int, value varchar(10)) insert into tb values(1, 'aa') insert into tb values(1, ' ...
/* 分组之后拼接字符串 */ ;with t as( SELECT WorkflowId,Remark FROM dbo.OperatorAutomationProcess GROUP BY WorkflowId,Remark ) , H AS( SELECT ...
with temp00 as (select '1' id,'zhangsan' name,'gaoshu' cla,'3' num select '2' id,'lisi' name,'gaosh ...