Add an identifier to a transaction_id per product

• mic.con87

  SSCommitted

  Points: 1947

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  May 13, 2014 at 10:18 am

  #396746

  Hi,

  I have a data set that comprises of a transaction_id and then a list of line_id's for that transaction.

  eg:

  transaction_id = 12345 : Line_id = 129172

  transaction_id = 12345 : Line_id = 1654572

  transaction_id = 12345 : Line_id = 56229172

  This would imply that 3 items were purchased for a single transaction.

  The output I'm looking for is follows:

  transaction_id = 12345 : Line_id = 1

  transaction_id = 12345 : Line_id = 2

  transaction_id = 12345 : Line_id = 3

  If there are 5 Line_id's for a transaction_id then the output I'm looking for would be

  transaction_id = 992345: Line_id = 1

  transaction_id = 992345: Line_id = 2

  transaction_id = 992345: Line_id = 3

  transaction_id = 992345: Line_id = 4

  transaction_id = 992345: Line_id = 5

  If there are duplicate Line_id's i.e purchased two of the same product, then the logic must carry on as above

  eg:

  transaction_id = 56474: Line_id = 1

  transaction_id = 56474: Line_id = 2

  Thanks a million!

• Sean Lange

  SSC Guru

  Points: 286609

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  May 13, 2014 at 10:24 am

  #1713156

  You can use Row_Number with partition...

  with SomeData as

  (

  select 12345 as TransactionID, 129172 as Line_id union all

  select 12345, 1654572 union all

  select 12345, 56229172 union all

  select 12345, 13456 union all

  select 12345, 22342 union all

  select 12345, 332344 union all

  select 992345, 12345666 union all

  select 992345, 22333 union all

  select 992345, 33345 union all

  select 992345, 46345345 union all

  select 992345, 5634

  )

  select TransactionID, ROW_NUMBER() over (PARTITION BY TransactionID order by Line_id) as RowNum

  from SomeData

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• mic.con87

  SSCommitted

  Points: 1947

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  May 13, 2014 at 10:31 am

  #1713160

  That's great! Thanks so much 🙂

• Sean Lange

  SSC Guru

  Points: 286609

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  May 13, 2014 at 10:52 am

  #1713166

  mic.con87 (5/13/2014)

  ---

  That's great! Thanks so much 🙂

  You're welcome. Glad that worked for you.

  _______________________________________________________________

  Need help? Help us help you.

  Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

  Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

  Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
  Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
  Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
  Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/