-- =============================================================================
-- 只清空表里的数据，不删表、不改表结构（DELETE FROM，不是 DROP / TRUNCATE）
-- 1) fake_simple_admin：表名以前缀开头
--    t_order / c_ / t_pickup / t_recharge / t_customer
--    t_coupon / t_member / t_referral / t_sales / t_service
-- 2) track_center：表名以 t_order 开头
-- 请在 Navicat / DBeaver / MySQL Workbench 里整段执行（需要 DELIMITER）。
-- =============================================================================

-- 执行前先看将要清空的表
SELECT TABLE_SCHEMA, TABLE_NAME
FROM information_schema.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'
  AND (
    (
      TABLE_SCHEMA = 'fake_simple_admin'
      AND (
        TABLE_NAME LIKE 't\_order%'
        OR TABLE_NAME LIKE 'c\_%'
        OR TABLE_NAME LIKE 't\_pickup%'
        OR TABLE_NAME LIKE 't\_recharge%'
        OR TABLE_NAME LIKE 't\_customer%'
        OR TABLE_NAME LIKE 't\_coupon%'
        OR TABLE_NAME LIKE 't\_member%'
        OR TABLE_NAME LIKE 't\_referral%'
        OR TABLE_NAME LIKE 't\_sales%'
        OR TABLE_NAME LIKE 't\_service%'
      )
    )
    OR (
      TABLE_SCHEMA = 'track_center'
      AND TABLE_NAME LIKE 't\_order%'
    )
  )
ORDER BY TABLE_SCHEMA, TABLE_NAME;

DELIMITER $$

DROP PROCEDURE IF EXISTS `fake_simple_admin`.`sp_clear_biz_tables`$$

CREATE PROCEDURE `fake_simple_admin`.`sp_clear_biz_tables`()
BEGIN
  DECLARE v_done INT DEFAULT 0;
  DECLARE v_schema VARCHAR(64);
  DECLARE v_table VARCHAR(128);
  DECLARE v_sql TEXT;

  DECLARE cur CURSOR FOR
    SELECT TABLE_SCHEMA, TABLE_NAME
    FROM information_schema.TABLES
    WHERE TABLE_TYPE = 'BASE TABLE'
      AND (
        (
          TABLE_SCHEMA = 'fake_simple_admin'
          AND (
            TABLE_NAME LIKE 't\_order%'
            OR TABLE_NAME LIKE 'c\_%'
            OR TABLE_NAME LIKE 't\_pickup%'
            OR TABLE_NAME LIKE 't\_recharge%'
            OR TABLE_NAME LIKE 't\_customer%'
            OR TABLE_NAME LIKE 't\_coupon%'
            OR TABLE_NAME LIKE 't\_member%'
            OR TABLE_NAME LIKE 't\_referral%'
            OR TABLE_NAME LIKE 't\_sales%'
            OR TABLE_NAME LIKE 't\_service%'
          )
        )
        OR (
          TABLE_SCHEMA = 'track_center'
          AND TABLE_NAME LIKE 't\_order%'
        )
      )
    ORDER BY TABLE_SCHEMA, TABLE_NAME;

  DECLARE CONTINUE HANDLER FOR NOT FOUND SET v_done = 1;

  SET FOREIGN_KEY_CHECKS = 0;

  OPEN cur;
  read_loop: LOOP
    FETCH cur INTO v_schema, v_table;
    IF v_done = 1 THEN
      LEAVE read_loop;
    END IF;

    SET v_sql = CONCAT('DELETE FROM `', v_schema, '`.`', v_table, '`');
    SET @stmt = v_sql;
    PREPARE s FROM @stmt;
    EXECUTE s;
    DEALLOCATE PREPARE s;
  END LOOP;
  CLOSE cur;

  SET FOREIGN_KEY_CHECKS = 1;
END$$

DELIMITER ;

CALL `fake_simple_admin`.`sp_clear_biz_tables`();
DROP PROCEDURE IF EXISTS `fake_simple_admin`.`sp_clear_biz_tables`;