self join CTE recursive

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SQL-Server-2005

Hi frds

I have the following table

StaffId Level Id
-----------------------
M1 M1
s1 M1
s2 M1
s3 M1
s7 s1
s10 s7
s8 s5
a k

result
-----------

input : M1

output:

M1 M1
s1 M1
s2 M1
s3 M1
s7 s1
s10 s7

please reply ....

Posted 3-May-12 6:46am

laxman B

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Ganesan Senthilvel 3-May-12 12:48pm

Is it your academic exercise?

Sandeep Mewara 4-May-12 2:25am

And the issue is?

1 solution

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Hoangquanghuy · Accepted Answer · 2012-05-03T07:20:00

Solution 1

SQL

with CTE_List as
(
    select * from YourTable t where t.StaffId = @M1
    union all
    select * from CTE_List p, YourTable t where t.LevelId = p.StaffId
)
select * from CTE_List

@M1 is your input variable.

Posted 3-May-12 7:20am

Hoangquanghuy