使用当前mysql创建CSV文件

Question

如何将数据从mysql导出到具有日期和时间的文件csv。我尝试了这个代码，但我得到了一个错误

SELECT *
FROM order
INTO OUTFILE '/tmp/',NOW(),'_orders.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY 'n';

这是我的错误

1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"' ,NOW(), '"'_orders.csv' FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TER' at line 3

这是我的活动工作很棒，但我希望每个月底都有不同的简历

CREATE DEFINER = `admin`@`localhost` EVENT `Order` 
ON SCHEDULE EVERY1 MONTH STARTS '2018-12-01 00:00:00' 
ON COMPLETION NOT PRESERVE ENABLE 
COMMENT 'Order save' 
DO SELECT *
FROM Order
INTO OUTFILE '/tmp/_orders.csv'

这里的查询得到了带有日期的名称，但我不能在事件中添加这个

SET @`outfull` := CONCAT('/tmp/', NOW(), 'orders.csv');
SET @`qry` := CONCAT('SELECT * 
INTO OUTFILE '', @`outfull`, '' 
FIELDS TERMINATED BY ';' 
ENCLOSED BY '"' 
LINES TERMINATED BY 'n' 
FROM `order`');
PREPARE `stmt` FROM @`qry`;
SET @`qry` := NULL;
EXECUTE `stmt`;
DEALLOCATE PREPARE `stmt`;

Answer 1

尝试准备好的语句：

set @sql = concat('SELECT *
FROM tradooITLangues 
INTO OUTFILE ', concat(''', '/tmp/', NOW(), '_orders.csv', '''),
' FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '#n';');
PREPARE stmt1 FROM @sql;
EXECUTE stmt1; 
DEALLOCATE PREPARE stmt1; 

在一个事件中(我的MySQL接受了语法(：

delimiter $$
CREATE DEFINER = `admin`@`localhost` EVENT `Order` 
ON SCHEDULE EVERY 1 MONTH STARTS '2018-12-01 00:00:00' 
ON COMPLETION NOT PRESERVE ENABLE 
COMMENT 'Order save' 
DO
BEGIN
SET @`outfull` := CONCAT('/tmp/', NOW(), 'orders.csv');
SET @`qry` := CONCAT('SELECT * 
INTO OUTFILE '', @`outfull`, '' 
FIELDS TERMINATED BY ';' 
ENCLOSED BY '"' 
LINES TERMINATED BY 'n' 
FROM `order`');
PREPARE `stmt` FROM @`qry`;
SET @`qry` := NULL;
EXECUTE `stmt`;
DEALLOCATE PREPARE `stmt`;
END;
$$