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RANK()
dense_rank() ......
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create tablespace testSP
datafile 'E:\COMPANY\rbtsql\testSP.dbf'
size 100M AutoExtend On Next 10M Maxsize 2048M
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create user janely identified by wawa
default tablespace testSP--ĬÈϱí¿Õ¼äÊÇ system
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grant ......
create table tree_table
(
id number,
pId number,
orderNumber number,
name varchar2(255)
)
select tt.*
from tree_table tt
start with tt.pId = 0
connect by prior tt.id = ttd.pId
order siblings by orderNumber ......