SYS_CONNECT_BY_PATH(column,'char') 结合 start with ... connect by prior
2016-09-29 10:09
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查询效果:
查询语句:
select SYS_CONNECT_BY_PATH(departmentname,'>') ,t.departmentname,level
from hrmdepartment t
start with departmentname='新事业部'
connect by prior id=superId;
【语句:
①从“新事业部“开始,通过根节点向子节点追朔;如果想从子节点向根节点追朔,应该为:superId=id;
②level是值当前的等级,比如”新事业部“是1级节点,”品牌营销总部“是2级节点
③”>新事业部>品牌营销总部>B2B>酒店业务“,这个是加了【SYS_CONNECT_BY_PATH(column,'char') 】才有的效果
】
查询语句:
select SYS_CONNECT_BY_PATH(departmentname,'>') ,t.departmentname,level
from hrmdepartment t
start with departmentname='新事业部'
connect by prior id=superId;
【语句:
①从“新事业部“开始,通过根节点向子节点追朔;如果想从子节点向根节点追朔,应该为:superId=id;
②level是值当前的等级,比如”新事业部“是1级节点,”品牌营销总部“是2级节点
③”>新事业部>品牌营销总部>B2B>酒店业务“,这个是加了【SYS_CONNECT_BY_PATH(column,'char') 】才有的效果
】
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