如何把Access的数据导入到Mysql中_MySQL
Access
在建设网站的过程中,经常要处理一些数据的导入及导出。在Mysql数据库中,一般有两种方法来处理数据的导出:
1. 使用select * from table_name into outfile “file_name”;
2. 使用mysqldump实用程序
下面我们来举例说明:
假设我们的数据库中有一个库为samp_db,一个表为samp_table。现在要把samp_table的数据导出。则我们可以利用以下方法来实现:
在Mysql提示符下打入select * from samp_table into outfile “file_name”;
在系统命令提示符下打入mysqldump –u root samp_db samp_table >samp.sql
(当然mysqldump有很多选项.如 -d 表示只导出表结构; -t 表示只导入表数据)
如何来处理数据的导入:一般我们在系统命令提示符下打入mysqlimport –u root samp_db samp_table.txt(注意:这个TXT文件名必须以表的名字命名)。对于mysqldump导出的数据我们还可以用mysql –u root samp_db
另外除了以上方法,对于移动后的数据库系统与原系统一致的前提下,我们可以通过文件的拷贝来实现数据的导入与导出.首先我们用mysqladmin –u root variables(在系统命令提示符下)或者用show variables;(在Mysql提示符下)来找到datadir。如在我的环境下,此目录在c:\mysql\data。然后对其中的一些文件进行拷贝。一切ok!
有了以上知识后,我们进入正题:如何把ACCESS的数据导入到Mysql中。
首先我们把数据从ACCESS中导出为文本文件。在导出过程中注意选择好字段分隔符和文本标识符,且查看一下文本文件,确定一个记录是否在同一行上,如不是,则手工把回车键除掉。假如我们导出的文本文件为c:\samp_table.txt。其内容如下:
1.张新化,男
2.江先进,女
接下来我们用mysqlimport –u root –fields-terminated-by=”\,” samp_db samp_table.txt ,或者用load data infile “c:\\samp_table.txt” into table samp_table fields terminated by “\,”; 去试一下(注意转义字符),是不是一切ok!如果还不行,请仔细看一下具体命令的帮助。下面列出一些选项:
--fields-enclosed-by=char 指明列值应包括在指定的字符中。通常用引号。缺省时,假定列值不包括在任何字符中。
--fields-escaped-by=char 表示用于转义特殊字符的转义符。缺省时表示无转义符。
--fields-terminated-by=char 指定分隔列的字符。缺省时假定列值由制表符分隔。
--lines-terminated-by=str 指定结束输入行的串(可以是多字符的)。缺省时假定由换行符终止行。

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