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Hello

I am trying to extract from a column of a SQLITE-DB (containing text sentences) sentences that contain a string ($query). I normally use:

$results = $dbh->selectall_arrayref("SELECT ID, sentence FROM texts +WHERE sentence LIKE '%$query%'"

which is working pretty good (every sentence containing $query somewhere is extracted). What I'd like to implement is a matching only for entire words. I thought the following would do the game (note the white spaces between and after $query):

$results = $dbh->selectall_arrayref("SELECT ID, sentence FROM texts +WHERE sentence LIKE ' %$query% '" <\code> <p> Of course it doesn't work as I expected: <code> $query="tag" sentence1= "Put tags around your paragraphs" sentence2= "Put a tag around your paragraphs" sentence3= "I am tagging your paragraphs" sentence4= "There are many advantages"

I get rid only of sentence4 (no white spaces left and right of "tag"

What I am doing wrong?"


In reply to DBD-SQLite Regexp by welle

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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    [Corion]: Meh. I'm now on Firefox 57 ("Quantum") and again have to remove Pocket, and reinstall the adblocker, uMatrix (because NoScript doesn't work) and silence the about:blank page to not download crap from the internet
    [Corion]: Maybe I shouldn't update software ...
    [ambrus]: Corion: my guess is to first read the start of the file to check what format it is out of two or more possibilities, then rewind it and handle it differently depending on the program
    [ambrus]: s/program/format/
    [Dumu]: ambrus: it's about testing a file for being multiple possible file formats
    [ambrus]: In particular, you might want to detect the encoding of a HTML file from between utf-16 versus ascii-based and encoding given in a META tag.
    [ambrus]: Dumu: it should probably be safe to change the encoding if you rewind first with seek $file, 0, 0 first
    [Dumu]: ambrus: good guess. I'm trying to contribute to a CPAN module, and the existing tests assume they're looking at text files
    [Dumu]: ambrus: thank you. I was seeking afterwards. I'll seek first.
    [jedikaiti]: Hello, Dumu!

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