Hello, I can't check the VB at this moment, but I think that you dont need de single quotes around the @hash parameter in line 65.
Hope this helps Xevi Al 05/03/2010 15:48, En/na Nick Shaw ha escrit: > Small aside: Why do you select the id, name AND hash in the select? You > don't appear to use them. > > I can't see anything specifically wrong, but try doing "SELECT COUNT(id) > WHERE hash='@hash'" instead, and see if the returned count > 0 or not. > > You could also maybe test your routine by passing in a fixed string as > the hash='@hash' value each time and check it does actually returns > rows. > > My guess is there's something subtle wrong with the VB.NET code, but my > VB.NET syntax knowledge is not up to the job of finding any problem I > can see. :) > > Thanks, > Nick. > > -----Original Message----- > From: sqlite-users-boun...@sqlite.org > [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Gilles Ganault > Sent: 05 March 2010 14:35 > To: sqlite-users@sqlite.org > Subject: [sqlite] [newbie/VB.Net + SQLite] Reliable file hashing? > > Hello, > > I'm having the following issue while looping through a > directory: > for each file, I need to hash its content, check if this file is > already in an DB, add a record if it isn't. > The goal of this application is to check a whole drive for UltraEdit > temp files, check for duplicates, and save any unique file into a > backup directory. > > In the following code, a record is added everytime, although this file > is already in the SQLite database (I checked by opening it with a > stand-alone application after running the program once): > > http://pastebin.ca/1823757 > > The problem occurs around line 63. > > I'm using TEXT to hold the hash column: Could it be that, for some > reason, this data isn't reliably saved or read, which would explain > why a new record is INSERTed every time, even though this item is > already in the database? > > Thank you for any hint. > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
