在导入到mysql时修改CSV字段 [英] Modify CSV field on import to mysql

问题描述

我正在尝试将CS​​V文件导入到mysql数据库。

I'm trying to import a CSV file to a mysql database.

CSV文件包含以下格式的日期：

The CSV file contains (amongst other things) dates in the following format:

"2010-04-31 17:43:12"

我的第一种方法是使用以下.sql脚本：

My first approach was to use the following .sql script:

USE test;
LOAD DATA INFILE '/tmp/test.cvs'
replace INTO TABLE test_table
FIELDS TERMINATED BY ','
LINES TERMINATED BY '\n'
(...,mydate,...);

这不起作用，因为双引号使字段2010-04-31 17:43 ：12一个字符串。
所以我想，我可以使用

which doesn't work because the double quotes make the field "2010-04-31 17:43:12" a string. So i figured out i can convert it to DATETIME format using

select STR_TO_DATE("2010-04-31 17:43:12",'(%Y-%c-%e %H:%i:%S)') AS NewDateTime

这个查询在它自己上工作正常，但我想知道是否有一种方法在导入时即时转换字符串。以下内容之一：

That query works fine on it's own but I was wondering if there's a way of converting the string on the fly while importing. Something amongst the following:

...
LINES TERMINATED BY '\n'
(...,STR_TO_DATE(mydate,'(%Y-%c-%e %H:%i:%S)') AS NewDateTime,...);

推荐答案

您需要指定列列表，然后使用SET命令应用STR_TO_DATE：

You need to specify the column list, and then use the SET command to apply the STR_TO_DATE:

(@date,column2,column3,column4,column5,column6,)
SET mydate = STR_TO_DATE(@date, '%Y-%c-%e %H:%i:%S')

相关：

• http://forums.mysql.com/read.php?10,136269,136269#msg-136269

• http://forums.mysql.com/read.php?10,136269,136269#msg-136269

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