ETL Transformation of Generic Transaction into Bet and Win












0














I've got a problem in my database, understanding a generic Transaction if its a Bet or Win. Currently it consists both in one transaction.
I've an additional field which can help -> Bet Amount, which is constant.



Here is how the table looks like:



enter image description here



Basically what you see in Amount Field in the first transaction, is the Amount the customer starts with. Whenever the amount of next transactions are higher compare to its previous transaction then the specific Bet has got a Win too, if its lower then its only a Bet.



My need is to create an ETL process which will Create this Table:



enter image description here



Hope you can help me write an efficient SQL Server code in order to create the requested Table.



Thanks in advance,










share|improve this question



























    0














    I've got a problem in my database, understanding a generic Transaction if its a Bet or Win. Currently it consists both in one transaction.
    I've an additional field which can help -> Bet Amount, which is constant.



    Here is how the table looks like:



    enter image description here



    Basically what you see in Amount Field in the first transaction, is the Amount the customer starts with. Whenever the amount of next transactions are higher compare to its previous transaction then the specific Bet has got a Win too, if its lower then its only a Bet.



    My need is to create an ETL process which will Create this Table:



    enter image description here



    Hope you can help me write an efficient SQL Server code in order to create the requested Table.



    Thanks in advance,










    share|improve this question

























      0












      0








      0







      I've got a problem in my database, understanding a generic Transaction if its a Bet or Win. Currently it consists both in one transaction.
      I've an additional field which can help -> Bet Amount, which is constant.



      Here is how the table looks like:



      enter image description here



      Basically what you see in Amount Field in the first transaction, is the Amount the customer starts with. Whenever the amount of next transactions are higher compare to its previous transaction then the specific Bet has got a Win too, if its lower then its only a Bet.



      My need is to create an ETL process which will Create this Table:



      enter image description here



      Hope you can help me write an efficient SQL Server code in order to create the requested Table.



      Thanks in advance,










      share|improve this question













      I've got a problem in my database, understanding a generic Transaction if its a Bet or Win. Currently it consists both in one transaction.
      I've an additional field which can help -> Bet Amount, which is constant.



      Here is how the table looks like:



      enter image description here



      Basically what you see in Amount Field in the first transaction, is the Amount the customer starts with. Whenever the amount of next transactions are higher compare to its previous transaction then the specific Bet has got a Win too, if its lower then its only a Bet.



      My need is to create an ETL process which will Create this Table:



      enter image description here



      Hope you can help me write an efficient SQL Server code in order to create the requested Table.



      Thanks in advance,







      sql-server ssis etl






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 19 '18 at 13:57









      erezlale

      1911214




      1911214
























          2 Answers
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          I'm not sure I'd try to do this purely in SSIS, but here's a query that should do the right thing:



          select *, 
          case
          when LAG(Amount, 1, Amount) over (order by TransactionID) = Amount then 'Bet'
          else 'Win'
          end
          from dbo.Transactions;


          I'm using the LAG() function to look back one row at the value for the Amount column in the previous row (where "previous" is defined by the ordering of TransactionID†). If that value is the same, consider it a Bet otherwise it's a Win.



          † It seems like you'd want to consider games in isolation. If that's the case, change the OVER() clause on the LAG() function to partition by GameID order by TransactionID.






          share|improve this answer





























            0














            Use the script below as SQL Command in your OLEDB Source



            SELECT TransactionID, DateTime, GameID, CASE WHEN ISNULL(Amount, '') = '' THEN 
            'StartGame' WHEN Amount > BetAmount THEN 'win' ELSE 'bet' END AS
            TransactionTypeID, BetAmount, Amount
            FROM [your table name]





            share|improve this answer























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              2 Answers
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              2 Answers
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              0














              I'm not sure I'd try to do this purely in SSIS, but here's a query that should do the right thing:



              select *, 
              case
              when LAG(Amount, 1, Amount) over (order by TransactionID) = Amount then 'Bet'
              else 'Win'
              end
              from dbo.Transactions;


              I'm using the LAG() function to look back one row at the value for the Amount column in the previous row (where "previous" is defined by the ordering of TransactionID†). If that value is the same, consider it a Bet otherwise it's a Win.



              † It seems like you'd want to consider games in isolation. If that's the case, change the OVER() clause on the LAG() function to partition by GameID order by TransactionID.






              share|improve this answer


























                0














                I'm not sure I'd try to do this purely in SSIS, but here's a query that should do the right thing:



                select *, 
                case
                when LAG(Amount, 1, Amount) over (order by TransactionID) = Amount then 'Bet'
                else 'Win'
                end
                from dbo.Transactions;


                I'm using the LAG() function to look back one row at the value for the Amount column in the previous row (where "previous" is defined by the ordering of TransactionID†). If that value is the same, consider it a Bet otherwise it's a Win.



                † It seems like you'd want to consider games in isolation. If that's the case, change the OVER() clause on the LAG() function to partition by GameID order by TransactionID.






                share|improve this answer
























                  0












                  0








                  0






                  I'm not sure I'd try to do this purely in SSIS, but here's a query that should do the right thing:



                  select *, 
                  case
                  when LAG(Amount, 1, Amount) over (order by TransactionID) = Amount then 'Bet'
                  else 'Win'
                  end
                  from dbo.Transactions;


                  I'm using the LAG() function to look back one row at the value for the Amount column in the previous row (where "previous" is defined by the ordering of TransactionID†). If that value is the same, consider it a Bet otherwise it's a Win.



                  † It seems like you'd want to consider games in isolation. If that's the case, change the OVER() clause on the LAG() function to partition by GameID order by TransactionID.






                  share|improve this answer












                  I'm not sure I'd try to do this purely in SSIS, but here's a query that should do the right thing:



                  select *, 
                  case
                  when LAG(Amount, 1, Amount) over (order by TransactionID) = Amount then 'Bet'
                  else 'Win'
                  end
                  from dbo.Transactions;


                  I'm using the LAG() function to look back one row at the value for the Amount column in the previous row (where "previous" is defined by the ordering of TransactionID†). If that value is the same, consider it a Bet otherwise it's a Win.



                  † It seems like you'd want to consider games in isolation. If that's the case, change the OVER() clause on the LAG() function to partition by GameID order by TransactionID.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Nov 19 '18 at 17:28









                  Ben Thul

                  22.2k32546




                  22.2k32546

























                      0














                      Use the script below as SQL Command in your OLEDB Source



                      SELECT TransactionID, DateTime, GameID, CASE WHEN ISNULL(Amount, '') = '' THEN 
                      'StartGame' WHEN Amount > BetAmount THEN 'win' ELSE 'bet' END AS
                      TransactionTypeID, BetAmount, Amount
                      FROM [your table name]





                      share|improve this answer




























                        0














                        Use the script below as SQL Command in your OLEDB Source



                        SELECT TransactionID, DateTime, GameID, CASE WHEN ISNULL(Amount, '') = '' THEN 
                        'StartGame' WHEN Amount > BetAmount THEN 'win' ELSE 'bet' END AS
                        TransactionTypeID, BetAmount, Amount
                        FROM [your table name]





                        share|improve this answer


























                          0












                          0








                          0






                          Use the script below as SQL Command in your OLEDB Source



                          SELECT TransactionID, DateTime, GameID, CASE WHEN ISNULL(Amount, '') = '' THEN 
                          'StartGame' WHEN Amount > BetAmount THEN 'win' ELSE 'bet' END AS
                          TransactionTypeID, BetAmount, Amount
                          FROM [your table name]





                          share|improve this answer














                          Use the script below as SQL Command in your OLEDB Source



                          SELECT TransactionID, DateTime, GameID, CASE WHEN ISNULL(Amount, '') = '' THEN 
                          'StartGame' WHEN Amount > BetAmount THEN 'win' ELSE 'bet' END AS
                          TransactionTypeID, BetAmount, Amount
                          FROM [your table name]






                          share|improve this answer














                          share|improve this answer



                          share|improve this answer








                          edited Nov 20 '18 at 10:01









                          Yahfoufi

                          81111129




                          81111129










                          answered Nov 19 '18 at 16:10









                          iMajek

                          434




                          434






























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