MySql數據庫導出csv

MySql數據庫導出csv文件命令：

mysql> select first_name,last_name,email from account into outfile 'e://output1.csv' fields terminated by ','optionally enclosed by ''lines terminated by '/n';

csv文件效果：

 

sunny	Grigoryan	[e-mail]
Jon	Siegal	[e-mail]
Joe	Siegal	[e-mail]
alejandro	medina	[e-mail]

 

 

cvs文件導入MySql數據庫命令:
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 | [e-mail]
+----+------------+-----------+--------------------------+

FIELDS TERMINATED BY ---- 字段終止字符
OPTIONALLY ENCLOSED BY ---- 封套符
LINES TERMINATED BY ---- 行終止符

 

 

通過mysql客戶端shell連接到服務器，選擇使用的數據庫，輸入sql代碼： 

select * from test_info   
into outfile '/tmp/test.csv'   
fields terminated by ',' optionally enclosed by '"' escaped by '"'   
lines terminated by '\r\n'; 

里面最關鍵的部分就是格式參數

這個參數是根據RFC4180文檔設置的，該文檔全稱Common Format and MIME Type for Comma-Separated Values (CSV) Files，其中詳細描述了CSV格式，其要點包括：
(1)字段之間以逗號分隔，數據行之間以\r\n分隔；

(2)字符串以半角雙引號包圍，字符串本身的雙引號用兩個雙引號表示。

通過執行上述代碼，便可以將需要的數據以csv格式導出到執行的文件中。

 

另外，MySQL中導入CSV格式數據的sql代碼如下:

load data infile '/tmp/test.csv'  
into table test_info   
fields terminated by ','  optionally enclosed by '"' escaped by '"'  
lines terminated by '\r\n';

 

 

當csv文件中的每一行記錄的列數小於數據庫表時，以下語句將十分有用：

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) ;

藍色字部分是亮點。如果數據表包含自增字段，例如自增的ID， 這個語句將十分有用。