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sqlserver 合并列数据的实现 - 站长搜索
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sqlserver 合并列数据的实现

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2023-02-25 05:41:39 转载来源: 网络整理/侵权必删

sqlserver递归查询树型结构某节点的所有上级节点,并且把这些所有上级节点多行拼接为一行,即合并列数据witheps_root(pk_eps,pk_parent,eps_code,eps_name)as(SELECTpk_eps,pk_parent,eps_code,eps_nameFROMpm_epswhereenablestate=2andpk_eps='1001A11000000003P62E'unionallSELECTe.pk_eps,e

sql server 递归查询树型结构某节点的所有上级节点,并且把这些所有上级节点多行拼接为一行,即合并列数据

with eps_root(pk_eps, pk_parent, eps_code, eps_name) as(    SELECT         pk_eps, pk_parent, eps_code, eps_name     FROM pm_eps     where enablestate = 2       and pk_eps = '1001A11000000003P62E'    union all    SELECT        e.pk_eps, e.pk_parent, e.eps_code, e.eps_name    FROM pm_eps e          inner join eps_root r on e.pk_eps = r.pk_parent    where e.enablestate = 2)select distinct 	eps_code = stuff((select '/' + convert(nvarchar(500), eps_code) from (select distinct eps_code from eps_root) r1 for xml path('')), 1, 1, ''),	--此次需要使用eps_code排序,不然中文的会错乱顺序	eps_name = stuff((select '/' + eps_name from (select top 99.99 PERCENT eps_name from eps_root order by eps_code) r2 for xml path('')), 1, 1, '')from eps_root

执行sql,如下图效果:

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