MySql数据库导出csv文件命令:mysql
mysql> select first_name,last_name,email from account into outfile 'e://output1.csv' fields terminated by ',' optionally enclosed by '' lines terminated by '/n';sql
csv文件效果:shell
sunny | Grigoryan | lovechoosesun@gmail.com | |||||
Jon | Siegal | sun@riliantech.net | |||||
Joe | Siegal | zhao@gmail.com | |||||
alejandro | medina | wei@gmail.com |
cvs文件导入MySql数据库命令:
mysql> load data local infile 'e://input1.csv' into table test1 fields termin
ated by ',' lines terminated by '/n' (first_name,last_name,email);
Query OK, 1 row affected, 1 warning (0.00 sec)
Records: 69 Deleted: 0 Skipped: 68 Warnings: 0
mysql> select * from test1;
+----+------------+-----------+--------------------------+
| id | first_name | last_name | email |
+----+------------+-----------+--------------------------+
| 0 | sunny | Grigoryan | lovechoosesun@gmail.com
+----+------------+-----------+--------------------------+
FIELDS TERMINATED BY ---- 字段终止字符
OPTIONALLY ENCLOSED BY ---- 封套符
LINES TERMINATED BY ---- 行终止符数据库
经过mysql客户端shell链接到服务器,选择使用的数据库,输入sql代码: 服务器
select * from test_info into outfile '/tmp/test.csv'
fields terminated by ',' optionally enclosed by '"' escaped by '"'
lines terminated by '\r\n'; app
里面最关键的部分就是格式参数spa
这个参数是根据RFC4180文档设置的,该文档全称Common Format and MIME Type for Comma-Separated Values (CSV) Files,其中详细描述了CSV格式,其要点包括:
(1)字段之间以逗号分隔,数据行之间以\r\n分隔;.net
(2)字符串以半角双引号包围,字符串自己的双引号用两个双引号表示。orm
经过执行上述代码,即可以将须要的数据以csv格式导出到执行的文件中。ip
另外,MySQL中导入CSV格式数据的sql代码以下:
load data infile '/tmp/test.csv' into table test_info
fields terminated by ',' optionally enclosed by '"' escaped by '"'
lines terminated by '\r\n';
当csv文件中的每一行记录的列数小于数据库表时,如下语句将十分有用:
load data infile "/tmp/appleAppV2_search_day_20110525.csv" into table apple_search_log fields terminated by ';' lines terminated by '/n' (apptypeId,keyword,searchTime,model) ;
蓝色字部分是亮点。若是数据表包含自增字段,例如自增的ID, 这个语句将十分有用。