## Employee Hierarchy

 Author Message UnionAll Right there with Babe Group: General Forum Members Points: 746 Visits: 637 There is a table similar to the one below:`create table #Orders(OrdNum varchar(5), Empid int, Mgrid int, MgrLevel int)insert #Ordersvalues ('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 One Orange Chip Group: General Forum Members Points: 28487 Visits: 6431 This is probably too simple, but maybe a start for you:`SELECT a.*FROM #Orders aINNER 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 SSC Guru Group: General Forum Members Points: 339179 Visits: 42614 Please see the following. It's pretty simple to do once you know how...http://www.sqlservercentral.com/articles/T-SQL/72503/ --Jeff ModenRBAR 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 problemsHow to post performance problemsForum FAQs dwain.c One Orange Chip Group: General Forum Members Points: 28487 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 SSC Guru Group: General Forum Members Points: 339179 Visits: 42614 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 ModenRBAR 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 problemsHow to post performance problemsForum FAQs UnionAll Right there with Babe Group: General Forum Members Points: 746 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 SSC Guru Group: General Forum Members Points: 339179 Visits: 42614 You bet... thank you for the feedback. --Jeff ModenRBAR 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 problemsHow to post performance problemsForum FAQs dwain.c One Orange Chip Group: General Forum Members Points: 28487 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 SSC Eights! Group: General Forum Members Points: 991 Visits: 1381 Good article Jeff Moden Helped me !!!!

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