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cid int À¸Ä¿ID
fatherid int ¸¸À¸Ä¿ID
childid text ×ÓÀ¸Ä¿ID
childids text ËùÓÐϼ¶À¸Ä¿ID
deeppath int À¸Ä¿²ã´Î
name varchar À¸Ä¿Ãû³Æ
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Ò»¼¶À¸Ä¿-1 ¶þ¼¶À¸Ä¿-1 Èý¼¶À¸Ä¿-1
Ò»¼¶À¸Ä¿-1 ¶þ¼¶À¸Ä¿-1 Èý¼¶À¸Ä¿-2
Ò»¼¶À¸Ä¿-2 ¶þ¼¶À¸Ä¿-2 Èý¼¶À¸Ä¿-3
Ò»¼¶À¸Ä¿-2 ¶þ¼¶À¸Ä¿-2 Èý¼¶À¸Ä¿-4
Ò»¼¶À¸Ä¿-2 ¶þ¼¶À¸Ä¿-3 Èý¼¶À¸Ä¿-5
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SQL code:
declare @t table(id int,fatherid int,name varchar(10))
insert @t select 9,0,'Ò»¼¶À¸Ä¿-1'
insert @t select 10,9,'¶þ¼¶À¸Ä¿-1'
insert @t select 11,10,'Èý¼¶À¸Ä¿-1'
insert @t select 12,10,'Èý¼¶À¸Ä¿-2'
insert @t select 13,0,'Ò»¼¶À¸Ä¿-2'
insert @t select 14,13,'¶þ¼¶À¸Ä¿-2'
insert @t select 15,14,'Èý¼¶À¸Ä¿-3'
insert @t select 16,14,'Èý¼¶À¸Ä¿-4'
insert @t select 17,13,'¶þ¼¶À¸Ä¿-3'
select a.name,b.name,c.name
from @t a
right join @t b on a.id = b.fatherid
left join @t c on b.id = c.fatherid
where a.fatherid = 0
name name nam
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TYPE test_rec IS record(
code varchar(10),
name varchar(30)
);
v_book test_rec;
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