SELECT id FROM action_types WHERE name = 'access'

SELECT id FROM action_types WHERE name = 'exit'

SELECT id FROM accueil WHERE define_var = 'MODULE_ID_DOCS'

SELECT id, TIME_TO_SEC(TIMEDIFF(NOW(), date_time)) AS diff, action_type_id
                FROM actions
                WHERE user_id = 0
                ORDER BY id DESC LIMIT 1

INSERT INTO actions SET
                    module_id = 0,
                    user_id = 0,
                    action_type_id = ,
                    date_time = NOW(),
                    duration = 0

SELECT path, visibility, format,
                              (LENGTH(path) - LENGTH(REPLACE(path, '/', ''))) AS depth
                       FROM document WHERE filename = 'Εισαγωγή Προγραμματισμός.pptx' AND path LIKE '%' HAVING depth = 1