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Job Application Test from Hell

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  • S Serguei

    SELECT Region, Contact
    FROM Fig1
    ORDER BY
    CASE Region WHEN 'Durban' THEN 1 ELSE 2 END,
    Contact

    Tip, you can do:

    SELECT TOP 100 PERCENT * FROM Fig1

    Even better tip: Don't do that - your query doesn't guarantee (although will more than likely result in) the correct ordering. You should have sorted by outerSeq, Contact in the outer query. See http://blogs.msdn.com/b/queryoptteam/archive/2006/03/24/560396.aspx

    B Offline
    B Offline
    Brady Kelly
    wrote on last edited by
    #41

    Thanks, I especially like the top 100 percent

    1 Reply Last reply
    0
    • B Brady Kelly

      I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

      Region

      Contact

      Cape Town

      Fred

      CapeTown

      Joe

      Cape Town

      Anna

      Durban

      John

      Durban

      Mary

      Johannesburg

      Frank

      Fig. 2

      Region

      Contact

      Durban

      John

      Durban

      Mary

      Johannesburg

      Frank

      Cape Town

      Anna

      CapeTown

      Fred

      Cape Town

      Joe

      A Offline
      A Offline
      altncsab
      wrote on last edited by
      #42

      This is my solution. Because there was no pre-condition then anything is allowed :-D

      declare @T_MyTable Table(Region varchar(200), Contact varchar(200))

      select case when Contact = 'Fred' and Region like 'Cape%Town' then 'CapeTown'
      when Region like 'Cape%Town' then 'Cape Town'
      else Region end Region,
      Contact
      from @T_MyTable
      order by substring(Region,2,1) desc, Contact

      1 Reply Last reply
      0
      • B Brady Kelly

        I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

        Region

        Contact

        Cape Town

        Fred

        CapeTown

        Joe

        Cape Town

        Anna

        Durban

        John

        Durban

        Mary

        Johannesburg

        Frank

        Fig. 2

        Region

        Contact

        Durban

        John

        Durban

        Mary

        Johannesburg

        Frank

        Cape Town

        Anna

        CapeTown

        Fred

        Cape Town

        Joe

        S Offline
        S Offline
        Simon_Duckett
        wrote on last edited by
        #43

        SELECT [Region], [Contact] FROM Table1 ORDER BY SUBSTRING(REVERSE([Region]), 2, 1), [Contact]

        J 1 Reply Last reply
        0
        • B Brady Kelly

          I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

          Region

          Contact

          Cape Town

          Fred

          CapeTown

          Joe

          Cape Town

          Anna

          Durban

          John

          Durban

          Mary

          Johannesburg

          Frank

          Fig. 2

          Region

          Contact

          Durban

          John

          Durban

          Mary

          Johannesburg

          Frank

          Cape Town

          Anna

          CapeTown

          Fred

          Cape Town

          Joe

          K Offline
          K Offline
          KP Lee
          wrote on last edited by
          #44

          This doesn't look like a question geared to testing your SQL skills, but your skill at defining "real" requirements from something that seems very silly at first. 1. Assume the person asking this, isn't a lune escaped from the asylum. 2. Try to find the underlying order that they are requesting. 3. ASK them what the underlying order is, suggesting a possibility. 4 ASK them the schema information you need in order to write the query. Sort of like: I see these regions are all in South Africa. I'm not that informed about that area, are you ordering this query by population? No? What is the order criteria you are using? Then find out if the criteria is in the table you are querying? Or they could be testing your knowledge of DB design and waiting for you to ask why the H the region and the name are stored in the same table in the first place. Failing all that, just answer the question. There are a bunch of ways to do it. You can throw in a case statement in a batch select and select the two fields and order by the case result, the union all solution would work, creating a temp table and joining with it is a third option.

          1 Reply Last reply
          0
          • B Brady Kelly

            I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

            Region

            Contact

            Cape Town

            Fred

            CapeTown

            Joe

            Cape Town

            Anna

            Durban

            John

            Durban

            Mary

            Johannesburg

            Frank

            Fig. 2

            Region

            Contact

            Durban

            John

            Durban

            Mary

            Johannesburg

            Frank

            Cape Town

            Anna

            CapeTown

            Fred

            Cape Town

            Joe

            J Offline
            J Offline
            James H
            wrote on last edited by
            #45

            SELECT Region, Contact FROM RegionTable ORDER BY SubString(Region,2,1) DESC, Contact ASC

            1 Reply Last reply
            0
            • S Simon_Duckett

              SELECT [Region], [Contact] FROM Table1 ORDER BY SUBSTRING(REVERSE([Region]), 2, 1), [Contact]

              J Offline
              J Offline
              James H
              wrote on last edited by
              #46

              Ha - you beat me

              1 Reply Last reply
              0
              • B Brady Kelly

                I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                Region

                Contact

                Cape Town

                Fred

                CapeTown

                Joe

                Cape Town

                Anna

                Durban

                John

                Durban

                Mary

                Johannesburg

                Frank

                Fig. 2

                Region

                Contact

                Durban

                John

                Durban

                Mary

                Johannesburg

                Frank

                Cape Town

                Anna

                CapeTown

                Fred

                Cape Town

                Joe

                M Offline
                M Offline
                Mark_Wallace
                wrote on last edited by
                #47

                It's a ridiculous question. If there's a reason for ordering as in ex.2, then there must be data that allows the order in that or another table (area code, telephone dialing code, or whatever). If such data isn't available, then the correct answer to the question would be to add a column for it. Otherwise, if it's just an arbitrary order for existing data, use an arbitrary solution -- the second letter of each location in reverse alphabetical order, for example -- then stuff it up the questioner's @rse.

                I wanna be a eunuchs developer! Pass me a bread knife!

                B 1 Reply Last reply
                0
                • B Brady Kelly

                  I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                  Region

                  Contact

                  Cape Town

                  Fred

                  CapeTown

                  Joe

                  Cape Town

                  Anna

                  Durban

                  John

                  Durban

                  Mary

                  Johannesburg

                  Frank

                  Fig. 2

                  Region

                  Contact

                  Durban

                  John

                  Durban

                  Mary

                  Johannesburg

                  Frank

                  Cape Town

                  Anna

                  CapeTown

                  Fred

                  Cape Town

                  Joe

                  P Offline
                  P Offline
                  PhilLeTaxi
                  wrote on last edited by
                  #48

                  Hi, With this request,

                  SELECT region, contact FROM `localisation` ORDER BY SUBSTRING(region,2,2) DESC, contact ASC

                  I obtain :

                  region contact
                  Durban John
                  Durban Mary
                  Johannesburg Frank
                  Cape Town Anna
                  Cape Town Fred
                  CapeTown Joe

                  The list is ordered regarding the second letter of the region. To avoid the missing blank in CapeTown, the end of the string is cut. Bye

                  1 Reply Last reply
                  0
                  • M Mark_Wallace

                    It's a ridiculous question. If there's a reason for ordering as in ex.2, then there must be data that allows the order in that or another table (area code, telephone dialing code, or whatever). If such data isn't available, then the correct answer to the question would be to add a column for it. Otherwise, if it's just an arbitrary order for existing data, use an arbitrary solution -- the second letter of each location in reverse alphabetical order, for example -- then stuff it up the questioner's @rse.

                    I wanna be a eunuchs developer! Pass me a bread knife!

                    B Offline
                    B Offline
                    Brady Kelly
                    wrote on last edited by
                    #49

                    It didn't strike me as that It's in order of Region, Contact asc, but it starts at the 2nd region, wrapping around to the first.

                    1 Reply Last reply
                    0
                    • B Brady Kelly

                      I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                      Region

                      Contact

                      Cape Town

                      Fred

                      CapeTown

                      Joe

                      Cape Town

                      Anna

                      Durban

                      John

                      Durban

                      Mary

                      Johannesburg

                      Frank

                      Fig. 2

                      Region

                      Contact

                      Durban

                      John

                      Durban

                      Mary

                      Johannesburg

                      Frank

                      Cape Town

                      Anna

                      CapeTown

                      Fred

                      Cape Town

                      Joe

                      X Offline
                      X Offline
                      Xapp
                      wrote on last edited by
                      #50

                      SELECT * FROM t ORDER BY SUBSTRING(REPLACE(Region, ' ', '') FROM 2) DESC, Contact ASC Tricky.

                      1 Reply Last reply
                      0
                      • B Brady Kelly

                        I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                        Region

                        Contact

                        Cape Town

                        Fred

                        CapeTown

                        Joe

                        Cape Town

                        Anna

                        Durban

                        John

                        Durban

                        Mary

                        Johannesburg

                        Frank

                        Fig. 2

                        Region

                        Contact

                        Durban

                        John

                        Durban

                        Mary

                        Johannesburg

                        Frank

                        Cape Town

                        Anna

                        CapeTown

                        Fred

                        Cape Town

                        Joe

                        P Offline
                        P Offline
                        PhilLeTaxi
                        wrote on last edited by
                        #51

                        Hi Again, Oups, I didn't see the response of James H. which has found the same solution. Sorry for the noise. Bye

                        1 Reply Last reply
                        0
                        • B Brady Kelly

                          I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                          Region

                          Contact

                          Cape Town

                          Fred

                          CapeTown

                          Joe

                          Cape Town

                          Anna

                          Durban

                          John

                          Durban

                          Mary

                          Johannesburg

                          Frank

                          Fig. 2

                          Region

                          Contact

                          Durban

                          John

                          Durban

                          Mary

                          Johannesburg

                          Frank

                          Cape Town

                          Anna

                          CapeTown

                          Fred

                          Cape Town

                          Joe

                          N Offline
                          N Offline
                          Narud Shiro
                          wrote on last edited by
                          #52

                          Guessing that we are using talking of SQL Server, and without using case when, union, or any other thing like them, this is my best: select Region, Contact from Contacts order by replace(Region, ' ', ''), Contact Can you give me a B+ at least, teacher?

                          P 1 Reply Last reply
                          0
                          • N Narud Shiro

                            Guessing that we are using talking of SQL Server, and without using case when, union, or any other thing like them, this is my best: select Region, Contact from Contacts order by replace(Region, ' ', ''), Contact Can you give me a B+ at least, teacher?

                            P Offline
                            P Offline
                            PhilLeTaxi
                            wrote on last edited by
                            #53

                            Hi, Your request gives this result :

                            region contact
                            Cape Town Anna
                            Cape Town Fred
                            CapeTown Joe
                            Durban John
                            Durban Mary
                            Johannesburg Frank

                            This is slightly different from the expected result. Bye

                            1 Reply Last reply
                            0
                            • C Christian Graus

                              OK, so it's sorted by two fields we can't see ( region and email address ) ?

                              Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                              G Offline
                              G Offline
                              ghle
                              wrote on last edited by
                              #54

                              Christian Graus wrote:

                              OK, so it's sorted by two fields we can't see ( region and email address ) ?

                              I think he meant that the test was sent to him via e-mail, not that e-mail was a hidden field.:confused: Heck, I'd just order by the hidden Sequence field. :)

                              Gary

                              1 Reply Last reply
                              0
                              • B Brady Kelly

                                I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                                Region

                                Contact

                                Cape Town

                                Fred

                                CapeTown

                                Joe

                                Cape Town

                                Anna

                                Durban

                                John

                                Durban

                                Mary

                                Johannesburg

                                Frank

                                Fig. 2

                                Region

                                Contact

                                Durban

                                John

                                Durban

                                Mary

                                Johannesburg

                                Frank

                                Cape Town

                                Anna

                                CapeTown

                                Fred

                                Cape Town

                                Joe

                                M Offline
                                M Offline
                                Member 96
                                wrote on last edited by
                                #55

                                A job application test that doesn't reflect a real world problem is an utter waste of time and whoever devised this should be kicked in the balls and repeatedly told to "get real".


                                “If you want to build a ship, don't drum up people together to collect wood and don't assign them tasks and work, but rather teach them to long for the endless immensity of the sea” - Antoine de Saint-Exupery

                                B 1 Reply Last reply
                                0
                                • B Brady Kelly

                                  I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                                  Region

                                  Contact

                                  Cape Town

                                  Fred

                                  CapeTown

                                  Joe

                                  Cape Town

                                  Anna

                                  Durban

                                  John

                                  Durban

                                  Mary

                                  Johannesburg

                                  Frank

                                  Fig. 2

                                  Region

                                  Contact

                                  Durban

                                  John

                                  Durban

                                  Mary

                                  Johannesburg

                                  Frank

                                  Cape Town

                                  Anna

                                  CapeTown

                                  Fred

                                  Cape Town

                                  Joe

                                  K Offline
                                  K Offline
                                  Kirk Wood
                                  wrote on last edited by
                                  #56

                                  SELECT 'look for different job' FROM 'places not full of self serving jerks who wish to prove their supposed superiority' Personally, my experience is that places that serve up such a test are full of jerks who think too highly of themselves. They find great pride in their ability to find questions few can answer, and probably can't produce anything worth having anyway. The number of people who think they are great far exceeds the number who really are great.

                                  1 Reply Last reply
                                  0
                                  • M Member 96

                                    A job application test that doesn't reflect a real world problem is an utter waste of time and whoever devised this should be kicked in the balls and repeatedly told to "get real".


                                    “If you want to build a ship, don't drum up people together to collect wood and don't assign them tasks and work, but rather teach them to long for the endless immensity of the sea” - Antoine de Saint-Exupery

                                    B Offline
                                    B Offline
                                    Brady Kelly
                                    wrote on last edited by
                                    #57

                                    Well, the one that did reflect a real world problem, probably the only one, was: Given a list of names, identify duplicate names as well as possible misspellings of the same name. I scrawled something about soundex in my answer. This was a written test taken after hours. I had nobody to raise issues with, but plenty of time to really think things through.

                                    1 Reply Last reply
                                    0
                                    • C Christian Graus

                                      Yeah, I expect that's the main thing he was to glean from the question.

                                      Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                                      T Offline
                                      T Offline
                                      TraceyTiethoff
                                      wrote on last edited by
                                      #58

                                      That's a good point Christian. My answer would be in the form of a question asked with the general idea of "What exactly are you trying to accomplish?". I can't imagine a reason for this sort order, as someone else mentioned. Either the order is insignificant, the significance is merely that some user likes it, or the data provided isn't complete and therefore doesn't reveal any logical reason for this order. I know programmers are often stuck with "just do it", but if the customer is open to it, I would prefer to have a discussion of the cost(both present and future) versus the benefit of having it this way (assuming it isn't an incomplete data issue).

                                      1 Reply Last reply
                                      0
                                      • C Christian Graus

                                        Is there any sense to that order ?

                                        Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

                                        Z Offline
                                        Z Offline
                                        ZRonZ28
                                        wrote on last edited by
                                        #59

                                        Fig. 2 Region Contact Durban John Durban Mary Johannesburg Frank Cape Town Anna CapeTown Fred Cape Town Joe The pattern seems pretty simple: 1. Region is reverse alphabetized using the second letter of the word (or maybe 2,3 and 4?), 2. Contact is alphabetized within the Region.

                                        modified on Friday, November 26, 2010 10:50 AM

                                        1 Reply Last reply
                                        0
                                        • B Brady Kelly

                                          I'm not looking for an answer here, I found my own, but this is quite a hard question. Given the table from Fig.1, write an SQL Select statement that would re-organize the results to look like Fig.2 Fig. 1

                                          Region

                                          Contact

                                          Cape Town

                                          Fred

                                          CapeTown

                                          Joe

                                          Cape Town

                                          Anna

                                          Durban

                                          John

                                          Durban

                                          Mary

                                          Johannesburg

                                          Frank

                                          Fig. 2

                                          Region

                                          Contact

                                          Durban

                                          John

                                          Durban

                                          Mary

                                          Johannesburg

                                          Frank

                                          Cape Town

                                          Anna

                                          CapeTown

                                          Fred

                                          Cape Town

                                          Joe

                                          D Offline
                                          D Offline
                                          dada2010
                                          wrote on last edited by
                                          #60

                                          Haha, i think i found the hidden order... Region are simply ordered by descending their longitude, contacts by the length of their name (descending) then by their fourth letter (ascending). As we know commonly longitudes of theses cities/regions are Cape Town : 18.45° Durban : 30.6° Johannesburg : 27° For the understanding, we suppose we have a table containing longitudes (while in real life we would need -of course- the request to connect to googlemap api to find it) (googlemap find CapeTown and Cape Town same longitude): wtf_region_longitude region longitude Cape Town 18 CapeTown 18 Durban 31 Johannesburg 27 and the table of fig 1: wtf_region_contacts Region Contact Cape Town Fred Cape Town Joe Cape Town Anna Durban John Durban Mary Johannesburg Frank Doing permutation between Joe and Fred, the request is :

                                          select s.region, contact from
                                          (
                                          select c.region,
                                          contact = case contact when 'Joe' then 'Fred' when 'Fred' then 'Joe' else contact end
                                          ,contact as ocontact
                                          from wtf_region_contacts c
                                          ) s, wtf_region_longitude l
                                          where s.region=l.region
                                          order by longitude desc, LEN(contact) desc, SUBSTRING(contact,4,1) asc

                                          --> region contact Durban John Durban Mary Johannesburg Frank Cape Town Anna CapeTown Fred Cape Town Joe Am I right ?

                                          modified on Friday, November 26, 2010 4:30 AM

                                          B 1 Reply Last reply
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