sql server 使用公共表表达式(CTE)递归

 1 with companyNodes(ParentNodeID,NodeID,NodeTypeID,level) as
 2 (
 3 　　select n.ParentNodeID,n.NodeID,n.NodeTypeID,0 level
 4 　　from tblclient_companyowner as o inner join tblSys_Node as n on o.NodeID=n.NodeID
 5 　　where o.CompanyID=238
 6 　　union all
 7 　　select n.ParentNodeID,n.NodeID,n.NodeTypeID,companyNodes.level+1
 8 　　from companyNodes inner join tblSys_Node n on companyNodes.NodeID=n.ParentNodeID
 9 )
10 
11 select * from companyNodes where NodeTypeID=4