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Created DELETE script for old data used in a stored procedure

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Daniel Schick 2024-04-28 13:34:36 +02:00
parent 032f0ebba8
commit 3e4eebfb7b
1 changed files with 31 additions and 0 deletions
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misc/delete_data.sql Normal file
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CREATE DEFINER=`ds`@`localhost` PROCEDURE `delete_data`()
BEGIN
DECLARE shipcall_id_var int;
DECLARE done INT DEFAULT FALSE;
DECLARE shipcall_iter CURSOR FOR
SELECT shipcall.id FROM shipcall
LEFT JOIN times ON
times.shipcall_id = shipcall.id AND times.participant_type = 8
WHERE
-- ARRIVAL
(type = 1 AND GREATEST(shipcall.eta, COALESCE(times.eta_berth, 0)) <= CURRENT_DATE() - INTERVAL 1 MONTH) OR
-- DEPARTURE / SHIFTING
(type != 1 AND GREATEST(shipcall.etd, COALESCE(times.etd_berth, 0)) <= CURRENT_DATE() - INTERVAL 1 MONTH);
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN shipcall_iter;
delete_loop: LOOP
FETCH shipcall_iter INTO shipcall_id_var;
IF done THEN
LEAVE delete_loop;
END IF;
DELETE FROM shipcall_participant_map WHERE shipcall_id = shipcall_id_var;
DELETE FROM shipcall_tug_map WHERE shipcall_id = shipcall_id_var;
DELETE FROM times WHERE shipcall_id = shipcall_id_var;
DELETE FROM shipcall WHERE id = shipcall_id_var;
END LOOP;
CLOSE shipcall_iter;
END