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sqlserver遍歷父,sql 遍歷

sqlserver 存儲(chǔ)過(guò)程中循環(huán)遍歷結(jié)果集

sql1=select * from (select *, row_number() over(order by username ) as rowNumber from users where regfrom='admin') as t where t.rowNumber 0 and t.rowNumber = 0 + 30 order by username

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怎么會(huì)有27 條記錄呢,除非你的表 一共就27條記錄吧。

用游標(biāo)或臨時(shí)表

--游標(biāo)

declare youbiao1 for 查詢(xún)1

open youbiao1

fetch next from youbiao1 into 變量

while @@FETCH_STATUS = 0

begin

里面一次套用

end

--臨時(shí)表

declare @ID int

set @ID = 1

while Exists(select * from 表)

begin

--處理

--

set @ID = @ID + 1

end

SQLserver 樹(shù)類(lèi)型,遍歷問(wèn)題,謝謝

Create Table Tb

(

Pid Varchar(50),

CEID Varchar(50),

Level int,

Ccode Varchar(50),

pCode Varchar(50)

)

Insert Into TB Values('','1',0,'產(chǎn)品1','')

Insert Into TB Values('1','2',1,'Test1','產(chǎn)品1')

Insert Into TB Values('1','3',1,'Test2','產(chǎn)品1')

Insert Into TB Values('2','4',2,'Test11','Test1')

Insert Into TB Values('2','5',2,'Test12','Test1')

Insert Into TB Values('3','6',2,'Test21','Test2')

Insert Into TB Values('3','7',2,'Test22','Test2')

Insert Into TB Values('6','8',3,'Test211','Test21')

Insert Into TB Values('6','9',3,'Test212','Test21')

Insert Into TB Values('6','10',3,'Test213','Test21')

With T

As

(

Select Pid,CEID,Ccode,Level,Convert(Varchar(4000),CEID) As Path From TB ?Where Pid=''

Union All

Select TB.Pid,TB.CEID,TB.Ccode,TB.Level,Convert(Varchar(4000),T.Path+'-'+TB.CEID) From TB inner join T On TB.Pid=T.CEID

)

Select replicate(' ? ?',level)+Ccode As Ccode From T

Order By Path

sql server 某數(shù)據(jù)庫(kù)所有表中數(shù)據(jù)的遍歷

--T_Sql查詢(xún)

select a.Name as tableName from sysobjects a inner join syscolumns b on a.ID=b.ID

where b.Name='字段名'

給分!

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