select itemnr count(dateused) from table group by itemnr
 
Best Regards
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| ISMAEL |
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  ----- Original Message ----- 
  From: 'Stef' [email protected] [firebird-support] 
  To: [email protected] 
  Sent: Thursday, March 02, 2017 11:36 AM
  Subject: [firebird-support] QUERY QUESTION


    
  Good day,

  I have a question for you SQL boffins, how can I query a table to get the
  count of consecutive days found ?

  A Table contains rows with dates where an item(s) has been added for every
  day this item was used. 

  i.e.

  itemnr dateused

  abc 2017/02/01

  abc 2017/02/02

  abc 2017/02/25

  abc 2017/02/25

  abc 2017/02/25

  abc 2017/02/26

  abc 2017/02/27

  abc 2017/02/28

  abc 2017/03/01

  abc 2017/03/02

  The result from above sample should be 6 as there is a break between
  2017/02/02 and 2017/02/25?

  Regards

  Stef

  [Non-text portions of this message have been removed]



  

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