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In my Drupal database I have so many field_deleted_data_XX and field_deleted_revision_XX tables. I have disable the revision entity but I want to delete these existing revision created tables, can I delete these tables directly or Is there any SQL script to delete unused tables from the database.

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    Just run cron a few times
    – Clive
    Feb 1, 2017 at 13:57

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You can safely remove them yes. You can use drush to delete these tables: run drush eval 'field_delete_field("yourfield")' and run cron afterwards with drush cron.

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  • OK thanks I will try using drush but how to run using cron? can you give some example.
    – kishore ms
    Feb 1, 2017 at 14:10
  • drush cr is a rebuild (drupal_flush_all_caches plus some D8 specific things related to the autoloader), drush cron runs cron.
    – mpdonadio
    Feb 1, 2017 at 14:20
  • Also the run cron option from the system status report page will do it.
    – mradcliffe
    Feb 1, 2017 at 14:32

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