Comparing doc or pdf Files from Using SQL Server

• natigsqlserver

  SSC-Addicted

  Points: 488

  More actions

  April 16, 2016 at 2:10 am

  #306637

  hi friends

  i have very interesting qeustion

  can we comparing two another files with sql server

  for example

  in varbinary column have a pdf format file

  in inserting new data in this table first i need compare

  files with another files in my table

  have this file in this table or not

  and

  can we compare files finding text from inserting file data

  thanks

• Jeff Moden

  SSC Guru

  Points: 1003853

  More actions

  April 16, 2016 at 11:39 am

  #1872566

  natigsqlserver (4/16/2016)

  ---

  hi friends

  i have very interesting qeustion

  can we comparing two another files with sql server

  for example

  in varbinary column have a pdf format file

  in inserting new data in this table first i need compare

  files with another files in my table

  have this file in this table or not

  and

  can we compare files finding text from inserting file data

  thanks

  Not enough information. Please post the CREATE TABLE statement for this table. I'll also tell you that if you don't have the file name and the date of the file stored in this table, it will take a VERY long time to compare the varbinary column if that's what you're thinking here.

  Last but not least, what are you using now to determine if a file needs to be loaded and what are you using to actually do the file load?

  --Jeff Moden

  ---

  RBAR 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.

  Change is inevitable... Change for the better is not.
  

  ---

  Helpful Links:
  How to post code problems
  How to Post Performance Problems
  Create a Tally Function (fnTally)
  

• Steve Jones - SSC Editor

  SSC Guru

  Points: 734418

  More actions

  April 18, 2016 at 8:32 am

  #1872779

  Do you need all the text to match, meaning are you only concerned about the text in a PDF or does the formatting matter?

  I'm asking because they're different. I could reformat a PDF slightly, not changing any of the information (pictures/words) and a binary comparison would be different.

  SQL Server does have the ability to read the words from PDFs using the iFilter interface and full text search. However, I'm not sure this is what you want, or if this would work. I haven't tried an exact comparison of large text in an iFTS situation. That's interesting. I'll see if I can find a way to try this.

  Note: Performance would likely be poor, so if you were comparing more than two items, meaning a search, this would probably not work well.