日期:2014-05-18 浏览次数:20550 次
--bom结构,查找节点下所有子节点: create table os(id int,parentid int,desn varchar(10)) insert into os select 1,0,'体育用品' insert into os select 2,0,'户外运动' insert into os select 3,1,'篮球' insert into os select 4,1,'足球' insert into os select 5,2,'帐篷' insert into os select 6,2,'登山鞋' insert into os select 7,0,'男士用品' insert into os select 8,7,'刮胡刀' insert into os select 9,3,'大号篮球' --求个节点下所有子节点: create function f_cid(@id int) returns varchar(500) as begin declare @t table(id int,parentid int,desn varchar(10),lev int) declare @lev int set @lev=1 insert into @t select *,@lev from os where id=@id while(@@rowcount>0) begin set @lev=@lev+1 insert into @t select a.*,@lev from os a,@t b where a.parentid=b.id and b.lev=@lev-1 end declare @cids varchar(500) select @cids=isnull(@cids+',','')+ltrim(id) from @t order by lev return @cids end go --调用函数 select *,ids=dbo.f_cid(id) from os --得到每个节点路径: create proc wsp2 @id int as select *,cast(' ' as varchar(10)) fullpath into #os from os DECLARE @i int,@j int set @i=0 set @j=1 select @i=max(parentid) from #os update #os set fullpath=id while @j<=@i begin update #os set fullpath=a.fullpath+','+ltrim(#os.id) from #os inner join #os a on #os.parentid=a.id where #os.parentid=@j set @j=@j+1 end select * from #os go --调用存储过程 exec wsp2 1 ---------------------------------------- create table tb(id varchar(3) , pid varchar(3) , name varchar(10)) insert into tb values('001' , null , '广东省') insert into tb values('002' , '001' , '广州市') insert into tb values('003' , '001' , '深圳市') insert into tb values('004' , '002' , '天河区') insert into tb values('005' , '003' , '罗湖区') insert into tb values('006' , '003' , '福田区') insert into tb values('007' , '003' , '宝安区') insert into tb values('008' , '007' , '西乡镇') insert into tb values('009' , '007' , '龙华镇') insert into tb values('010' , '007' , '松岗镇') go --查询指定节点及其所有子节点的函数 create function f_cid(@ID varchar(3)) returns @t_level table(id varchar(3) , level int) as begin declare @level int set @level = 1 insert into @t_level select @id , @level while @@ROWCOUNT > 0 begin set @level = @level + 1 insert into @t_level select a.id , @level from tb a , @t_Level b where a.pid = b.id and b.level = @level - 1 end return end go --调用函数查询001(广东省)及其所有子节点 select a.* from tb a , f_cid('001') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 001 NULL 广东省 002 001 广州市 003 001 深圳市 004 002 天河区 005 003 罗湖区 006 003 福田区 007 003 宝安区 008 007 西乡镇 009 007 龙华镇 010 007 松岗镇 (所影响的行数为 10 行) */ --调用函数查询002(广州市)及其所有子节点 select a.* from tb a , f_cid('002') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 002 001 广州市 004 002 天河区 (所影响的行数为 2 行) */ --调用函数查询003(深圳市)及其所有子节点 select a.* from tb a , f_cid('003') b where a.id = b.id order by a.id /* id pid name ---- ---- ---------- 003 001 深圳市 005 003 罗湖区 006 003 福田区 007 003 宝安区 008 007 西乡镇 009 007 龙华镇 010 007 松岗镇 (所影响的行数为 7 行) */ drop table tb drop function f_cid ---------------------------------------- set ANSI_NULLS ON set QUOTED_IDENTIFIER ON go ALTER trigger [tri_updatesalary_Mem_Type] on [dbo].[SalaryIncrease] after insert as declare @i int set @i=@@identity update m set m.Mem_Type=case when s.SMark>500000 then '退休会员'--500000 when s.SMark>400000 then '钻石五级'--400000 when s.SMark>300000 then '钻石四级'--300000 when s.SMark>200000 then '钻石三级'--200000 when s.SMark>100000 then '钻石二级'--100000 when s.SMark>50000 then '钻石一级'--5