sql Oracle PL / SQL填充排序顺序列中的空白

Posted 2021-05-14

DECLARE
BEGIN
  FOR x in (SELECT model_instance_id FROM cg_model_instance_config)
  LOOP
    FOR y in (SELECT row_number() OVER (ORDER BY sort_order) AS new_sort, 
      sort_order 
      FROM cg_model_instance_config
      WHERE model_instance_id = x.model_instance_id) LOOP
        UPDATE cg_model_instance_config
        SET cg_model_instance_config.sort_order = y.new_sort
        WHERE cg_model_instance_config.sort_order = y.sort_order
        AND model_instance_id = x.model_instance_id;
      END LOOP;
  END LOOP;
END;