mysql导出指定数据或部份数据的方法_MySQL
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这个时候mysqldump可能就不大好使了,使用下面的方法则可以解决这个问题。
方法一、insert和select结合使用
1、新建一个表,比如new-table,包含所要导出的字段的名称,比如a,b,c
2、使用insert into new-table (a,b,c) select a,b,c from old-table;
3、剩下的步骤就是导出这个新的表,然后进行文本的处理
方法二、使用MySQL的SELECT INTO OUTFILE 备份语句(推荐)
在下面的例子中,生成一个文件,各值用逗号隔开。这种格式可以被许多程序使用。
SELECT a,b,a+b INTO OUTFILE ‘/tmp/result.text'
FIELDS TERMINATED BY ‘,' OPTIONALLY ENCLOSED BY ‘"'
LINES TERMINATED BY ‘/n'
FROM test_table;
详细见select的使用方法
select subject into outlifile ‘/tmp/xiaoruizi.text' fields terminated by ‘/t' optionally enclosed by ‘"' lines terminated by ‘/n' from pw_blog;
方法三、使用mysqldump
很奇妙的是我发现了mysqldump其实有个很好用的参数“―w”
帮助文档上说明:
-w|

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