我可以在 MySQL 中的同一个查询中使用 'LINES STARTING BY' 和 'LINES TERMINATED BY' 吗？

Question

我正在研究一个过程，该过程使用两个准备好的语句（@aux1 和 @aux2）将一些数据复制到文本文件中。然后复制信息的table，得到的是所有的行都被删除了。

问题是当我使用 call copyIntoFile() 执行程序时出现错误。

程序

delimiter !!
drop procedure if exists copyIntoFile !!
create procedure copyIntoFile()

begin
    declare path varchar(255);
    set path = concat("'C:/ProgramData/MySQL/MySQL Server 5.7/Uploads/", curdate(), ".txt'");

    set @aux1 = concat("select * from movie_modification where modified = true into outfile ", path, 
                        " fields terminated by ';' lines starting by 'Edit: ' lines terminated by '\n';");
    prepare stmt1 from @aux1;
    execute stmt1;
    deallocate prepare stmt1;

    set @aux2 = concat("select * from movie_modification where modified = false into outfile ", path, 
                        " fields terminated by ';' lines starting by 'New: ' lines terminated by '\n';");
    prepare stmt2 from @aux2;
    execute stmt2;
    deallocate prepare stmt2;

    delete from movie_modification;
end !!
delimiter ;

ERROR（执行程序时）

Error Code: 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 'lines terminated by ' '' at line 1

如您所见，错误发生在 lines terminated by 附近（第 1 行）。所以现在我想知道我是否可以在 lines starting by 之后使用 lines terminated by 或者是否在每个查询中只接受其中一个语句。

怎么了？

Answer 1

我认为你需要替换这个：

select ...
into outfile ...
fields terminated by ';' lines starting by 'Edit: ' lines terminated by '\n'

与：

select ...
into outfile ...
fields terminated by ';' lines starting by 'Edit: ' terminated by '\n'

即：lines关键词不能重复

我可以在 MySQL 中的同一个查询中使用 'LINES STARTING BY' 和 'LINES TERMINATED BY' 吗？

Can I use 'LINES STARTING BY' and 'LINES TERMINATED BY' on the same query in MySQL?

mysql

sql

select

stored-procedures

prepared-statement