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POmysql sorting by checkbox array data
 

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  1. POmysql sorting by checkbox array data
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    <hr> <p>Hello all, I have a quick problem with mysql query.</p> <p>I'm trying to do a selection and I'm not sure it can be done - or if I'm doing it right.</p> <p>I have a table with a field called ListeningMethod, which contains values from a comma separated array values, inserted from html check boxes. There are 5 possible entries and the field can have all, or none of the checkbox values in it.</p> <p>The sample data would be similar to this:</p> <pre><code>NOLISTEN,RADIO,INTERNET,SATELLITE,MOBILE </code></pre> <p>What I'd like to do is sort the data, but do it by counts. So, if there are 10 appearances of "RADIO", 5 of "MOBILE" and 3 of "SATELLITE" spaced over 10 records, then searching through 100 records, it should be able to show and sort those mentioned results, with the "order by" set to the most common listeningmethod at the top.</p> <p>I tried giving it a go, but didn't go too well.</p> <p>Any thoughts? Thanks.</p> <pre><code>SELECT ListeningMethod, ListeningMethod REGEXP ("NOLISTEN") as ViewNOLISTEN, ListeningMethod REGEXP ("RADIO") as ViewRADIO, ListeningMethod REGEXP ("INTERNET") as ViewINTERNET, ListeningMethod REGEXP ("SATELLITE") as ViewSATELLITE, ListeningMethod REGEXP ("MOBILE") as ViewMOBILE FROM VAT </code></pre> <p>I tried adding more, such as "COUNT(ViewRadio) CountRadio", but it says that column doesn't exist, so I'm a little lost.</p> <p>Example Insert statement:</p> <pre><code>INSERT INTO `VAT` (`ListeningMethod`) VALUES ('NOLISTEN,RADIO,INTERNET,MOBILE'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('INTERNET'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('NOLISTEN'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('INTERNET'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('INTERNET'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('RADIO'); INSERT INTO `VAT` (`ListeningMethod`) VALUES ('MOBILE'); &gt; </code></pre>
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    1. USvr_driver
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    1. COinserting comma seperated values is not preferrable instead of that insert listenmethod as 1,2,3,4,5 based on the listening method so that you can get the highest listening method using order by easily
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      1. USSivagopal Manpragada
    2. COThis would be so much easier if you used a separate table with one method per row rather than a comma-separated list.
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      1. USBarmar
    3. COHi @Barmar, yes in an ideal world yes, but I needed this running very quickly and didn't have the time. Thanks again.
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