Question

创建状态为带有状态为2的触发器，并且我需要在del_status = 2时第二次更新行之后创建一个老虎机

CREATE TRIGGER `exchange_log_update` AFTER UPDATE ON `exchange`
 FOR EACH ROW INSERT
IF NEW.del_status = 2
INTO
  exchange_log
SET
  client_id = NEW.client_id,
  ex_type = NEW.ex_type,
  segment_type = NEW.segment_type,
  validity_from = NEW.validity_from,
  validity_to = NEW.validity_to,
  file_upload = NEW.file_upload,
  log_status = 'update',
  created_at = NEW.created_at
END IF
END

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'IF NEW.del_status
INTO
  exchange_log
SET
  client_id = NEW.client_id,
  ex' at line 3

Answer 1

尝试

CREATE TRIGGER `exchange_log_update_new` AFTER UPDATE ON `exchange`
 FOR EACH ROW BEGIN
    IF (NEW.del_status = 2)
    THEN
        INSERT INTO `exchange_log` 
              values(client_id = NEW.client_id,
              ex_type = NEW.ex_type,
              segment_type = NEW.segment_type,
              validity_from = NEW.validity_from,
              validity_to = NEW.validity_to,
              file_upload = NEW.file_upload,
              log_status = 'update',
              created_at = NEW.created_at);
    END IF;
  END

如何在状态为2的mysql中使用条件

1 个答案: