Hi monks I have read some tutorials on SQLite and i have tried to do some work with it. My code is below: 
 
$v = 0; # The v variable will now be used with the database
 my $dbh = DBI->connect( "dbi:SQLite:dbname=mydatabase.db", "", "" )||
+ die "Cannot connect: DBI";

 # If the file exists delete the information in it
 eval 
        {
        local $dbh->{PrintError} = 0;
        $dbh->do("DROP TABLE webpages_data");
    };
    
 # Create a table
 $dbh->do( "CREATE TABLE webpages_data (id INTEGER PRIMARY KEY, page, 
+text, bigr)");

 my $a = 1;

 while(@links) {
     
          
     $dbh->do( "INSERT INTO webpages_data VALUES('$a', '$_', '$text[$v
+]', NULL)");
               
     $a++;
     $v++;            
     }
 
 
 # Disconnect when finished using the database
 $dbh->disconnect();

[download]

I have an array @text so the $v variable is to get the string inside each element of array and try to put it in the database table. The $a variable is to give a unique ID to each row in the table. These two variables work by adding to them 1 every time the loop is due to start again. I also want to keep the 4th column with a NULL value

The problem is i get an error "Use of uninitialized value in concatenation (.) or string". This comes from the INSERT INTO line. I have found previous posts that had this error but none of the solutions seem to help with this situation.

I have also downloaded the SQLite analyser program to see what is in my table but it doesn't bring up anything so i presume the information doesn;t get written in the database file

Any ideas? Thanks

In reply to How do I write data in SQLite by lampros21_7

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