有关mysql中Load Data记录换行的问题的解决方法, 需要的朋友可以参考下
问题是这样的:
表persons有两个字段: id和name
文本文档persons.txt中内容(其中每行字段之间用tab分割):
1 Bush
2 Carter
3 Bush
在mysql命令行下使用 load data local infile “persons.txt” into table persons 导入数据到persons表中。
导入后查看persons表的数据,与persons.txt的内容一致。但是使用语句
select distinct name from persons
查询,结果中Bush出现了两次(正常结果应该是Bush只出现一次)。
原因分析:
经过分析,发现原因是windows下换行符为"\r\n",而mysql在load data时默认使用"\n"来切割每行记录,导致插入到表中前两条记录的name字段末尾多插入了不可见字符"\r";也就是说使用distinct关键字查询出来的两个Bush中,第一个词尾有回车符"\r”,而第二个词尾没有。
说明:
1. mysql默认使用tab来分割每行的字段。
2. 因为linux下换行符为"\n",所以在linux下不会出现上述问题。
修改方法:
只要在导入数据时指定以"\r\n"来换行就可以了。
修改后的导入数据语句为:
代码如下:
load data local infile “persons.txt” into table persons
lines terminated by “\r\n”;

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