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Employee Hierarchy


Employee Hierarchy

Author
Message
UnionAll
UnionAll
SSC Veteran
SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)

Group: General Forum Members
Points: 298 Visits: 637
There is a table similar to the one below:

create table #Orders
(
OrdNum varchar(5)
, Empid int
, Mgrid int
, MgrLevel int
)

insert #Orders
values ('XZ1', 100, 100, 1)
, ('XZ1', 100, 351, 2)
, ('XZ1', 100, 355, 3)

, ('XZ1', 200, 200, 1)
, ('XZ1', 200, 451, 2)
, ('XZ1', 200, 555, 3)

, ('SY1', 200, 200, 1)
, ('SY1', 200, 451, 2)
, ('SY1', 200, 555, 3)



I need a query that takes order number and empid as parameters and returns all the employees involved in an order, so for example, for order XZ1 and employee 555, result should be 200, 451, and 555.

Thanks in advance for your help.
dwain.c
dwain.c
SSCrazy Eights
SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)

Group: General Forum Members
Points: 9513 Visits: 6431
This is probably too simple, but maybe a start for you:


SELECT a.*
FROM #Orders a
INNER JOIN (
SELECT OrdNum, EmpID
FROM #Orders
WHERE OrdNum = 'XZ1' AND Mgrid = 555
) b
ON a.OrdNum = b.OrdNum and a.EmpID = b.EmpID





My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!

My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.


Need to UNPIVOT? Why not CROSS APPLY VALUES instead?
Since random numbers are too important to be left to chance, let's generate some!
Learn to understand recursive CTEs by example.
Splitting strings based on patterns can be fast!
My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)

Group: General Forum Members
Points: 114823 Visits: 41394
Please see the following. It's pretty simple to do once you know how...
http://www.sqlservercentral.com/articles/T-SQL/72503/

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
dwain.c
dwain.c
SSCrazy Eights
SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)

Group: General Forum Members
Points: 9513 Visits: 6431
Jeff Moden (8/30/2012)
Please see the following. It's pretty simple to do once you know how...
http://www.sqlservercentral.com/articles/T-SQL/72503/


I was initially expecting to have to use the standard rCTE adjacency list traversal, but then it seemed the OPs requirements were a bit simpler. That why I said it looked "too easy."


My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!

My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.


Need to UNPIVOT? Why not CROSS APPLY VALUES instead?
Since random numbers are too important to be left to chance, let's generate some!
Learn to understand recursive CTEs by example.
Splitting strings based on patterns can be fast!
My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)

Group: General Forum Members
Points: 114823 Visits: 41394
dwain.c (8/30/2012)
Jeff Moden (8/30/2012)
Please see the following. It's pretty simple to do once you know how...
http://www.sqlservercentral.com/articles/T-SQL/72503/


I was initially expecting to have to use the standard rCTE adjacency list traversal, but then it seemed the OPs requirements were a bit simpler. That why I said it looked "too easy."


Understood and, to be sure, I wasn't knocking you. I was just offering an alternative.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
UnionAll
UnionAll
SSC Veteran
SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)SSC Veteran (298 reputation)

Group: General Forum Members
Points: 298 Visits: 637
Thank you all for the feedback. I ended up using dwain.c's query. Other articles you provided are very clear too. There are a few problems i can easily solve using these. Thanks again.
Jeff Moden
Jeff Moden
SSC Guru
SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)SSC Guru (114K reputation)

Group: General Forum Members
Points: 114823 Visits: 41394
You bet... thank you for the feedback.

--Jeff Moden

RBAR is pronounced ree-bar and is a Modenism for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column.
If you think its expensive to hire a professional to do the job, wait until you hire an amateur. -- Red Adair

Helpful Links:
How to post code problems
How to post performance problems
Forum FAQs
dwain.c
dwain.c
SSCrazy Eights
SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)SSCrazy Eights (9.5K reputation)

Group: General Forum Members
Points: 9513 Visits: 6431
Jeff Moden (8/31/2012)
dwain.c (8/30/2012)
Jeff Moden (8/30/2012)
Please see the following. It's pretty simple to do once you know how...
http://www.sqlservercentral.com/articles/T-SQL/72503/


I was initially expecting to have to use the standard rCTE adjacency list traversal, but then it seemed the OPs requirements were a bit simpler. That why I said it looked "too easy."


Understood and, to be sure, I wasn't knocking you. I was just offering an alternative.


I didn't think so.

And to OP: You're welcome, glad it works for you.


My mantra: No loops! No CURSORs! No RBAR! Hoo-uh!

My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.


Need to UNPIVOT? Why not CROSS APPLY VALUES instead?
Since random numbers are too important to be left to chance, let's generate some!
Learn to understand recursive CTEs by example.
Splitting strings based on patterns can be fast!
My temporal SQL musings: Calendar Tables, an Easter SQL, Time Slots and Self-maintaining, Contiguous Effective Dates in Temporal Tables
Smash125
Smash125
Old Hand
Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)Old Hand (323 reputation)

Group: General Forum Members
Points: 323 Visits: 1381
Good article Jeff Moden Helped me !!!!
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