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Drupal 7 as an enterprise web application framework Why as a developer you should use Drupal to build web applications? Klaus Harris DrupalCon Munich ppt download
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Base table or view not found: 1146 Table 'default_db.entity_name_revision' " updating schema from drupal 8.3.5 to drupal 8.5.5 with entities stored in an external database [#2990895] | Drupal.org
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